Latter-day Saints (and others, such as Roman Catholics, Eastern Orthodox, and some factions within Protestantism) will argue that the emphasis on keeping the commandments is evidence of a “false gospel” (cf. Gal 1:6-9), as (often Reformed) critics (mis)interprets the call to keep the commandments as a call to keep the commandments perfectly. In LDS theology, one’s “perfection” (Matt 5:48; cf. 3 Nephi 12:48) is something that will not happen until the next age, but one aspires to Christ’s admonition in the Sermon in the Mount (and the Sermon at the Temple [3 Nephi 12-14]). Notwithstanding, while it is true that Latter-day Saints emphasis obeying the commandments, we do not hold that it necessitates sinless perfection to “keep” the commandments, evidenced by all the texts that also speak of Christ being our “atoning sacrifice” (ιλασμος) in 1 John 2:1-2 (cf. Heb 2:17) and the constant calls to repentance throughout Scripture, but biblical and uniquely Latter-day Saint (Book of Mormon; Doctrine and Covenants; Pearl of Great Price). Indeed, even in the Old Testament, where the people were under the “strict schoolmaster” (to borrow Paul’s language in Gal 3:24) were said to have “kept” or obeyed completely the commandments. Notice the following two examples:
Then Joshua call the Reubenites, and the Gadites, and the half tribe of Manasseh, and said unto them, ye have kept all that Moses the servant of the Lord commanded you, and have obeyed my voice in all that I have commanded you. (Josh 22:1-2)
Be ye therefore every courageous to keep and to do all that is written in the book of the law of Moses, that ye turn not aside therefrom to the right hand or to the left. (Josh 23:6)
The claim that “keeping the commandments” is impossible reminds me of how Calvinist have to twist texts that speak to all people, without distinction, calling people to repentance, notwithstanding in their theology, such is an impossibility, resulting in God commanding the impossible(!), such as Zech 1:3:
Therefore say thoug unto them, Thus saith the Lord of hosts; Turn ye unto me, saith the Lord of hosts, and I will turn unto you, saith the Lord of hosts.
The Hebrew term is שׁוב (LXX: ἐπιστρέφω)—this term is often used in the OT in the sense of "turning" or "repenting" as evidenced in Hos 3:15, 11:5; Isa 6:10, 10:22; Jer 3:7, 12, 14, 22; 4:1; 5:3; 15:7; 18:8 1 Kgs 8:35; 13:33, etc), and God’s “turning” to His people is conditioned on their “turning” to Him; this is not the monergism and compatibilism that is part-and-parcel of Reformed soteriology, but is utterly consistent with LDS theology.
To see how “keeping the commandments” is a constant drum-beat in the admonitions in both the Old and the New Testament can be seen in the following texts:
Exodus 15:26 And said, If thou wilt diligently hearken to the voice of the LORD thy God, and wilt do that which is right in his sight, and wilt give ear to his commandments, and keep all his statutes, I will put none of these diseases upon thee, which I have brought upon the Egyptians: for I am the LORD that healeth thee.
Exodus 16:28 And the LORD said unto Moses, How long refuse ye to keep my commandments and my laws?
Exodus 20:6 And shewing mercy unto thousands of them that love me, and keep my commandments.
Leviticus 22:31 Therefore shall ye keep my commandments, and do them: I am the LORD.
Leviticus 26:3 If ye walk in my statutes, and keep my commandments, and do them;
Deuteronomy 4:2 Ye shall not add unto the word which I command you, neither shall ye diminish ought from it, that ye may keep the commandments of the LORD your God which I command you.
Deuteronomy 4:40 Thou shalt keep therefore his statutes, and his commandments, which I command thee this day, that it may go well with thee, and with thy children after thee, and that thou mayest prolong thy days upon the earth, which the LORD thy God giveth thee, for ever.
Deuteronomy 5:10 And shewing mercy unto thousands of them that love me and keep my commandments.
Deuteronomy 5:29 O that there were such an heart in them, that they would fear me, and keep all my commandments always, that it might be well with them, and with their children for ever!
Deuteronomy 6:2 That thou mightest fear the LORD thy God, to keep all his statutes and his commandments, which I command thee, thou, and thy son, and thy son's son, all the days of thy life; and that thy days may be prolonged.
Deuteronomy 6:17 Ye shall diligently keep the commandments of the LORD your God, and his testimonies, and his statutes, which he hath commanded thee.
Deuteronomy 7:9 Know therefore that the LORD thy God, he is God, the faithful God, which keepeth covenant and mercy with them that love him and keep his commandments to a thousand generations;
Deuteronomy 7:11 Thou shalt therefore keep the commandments, and the statutes, and the judgments, which I command thee this day, to do them.
Deuteronomy 8:2 And thou shalt remember all the way which the LORD thy God led thee these forty years in the wilderness, to humble thee, and to prove thee, to know what was in thine heart, whether thou wouldest keep his commandments, or no.
Deuteronomy 8:6 Therefore thou shalt keep the commandments of the LORD thy God, to walk in his ways, and to fear him.
Deuteronomy 8:11 Beware that thou forget not the LORD thy God, in not keeping his commandments, and his judgments, and his statutes, which I command thee this day:
Deuteronomy 10:13 To keep the commandments of the LORD, and his statutes, which I command thee this day for thy good?
Deuteronomy 11:1 Therefore thou shalt love the LORD thy God, and keep his charge, and his statutes, and his judgments, and his commandments, alway.
Deuteronomy 11:8 Therefore shall ye keep all the commandments which I command you this day, that ye may be strong, and go in and possess the land, whither ye go to possess it;
Deuteronomy 11:22 For if ye shall diligently keep all these commandments which I command you, to do them, to love the LORD your God, to walk in all his ways, and to cleave unto him;
Deuteronomy 13:4 Ye shall walk after the LORD your God, and fear him, and keep his commandments, and obey his voice, and ye shall serve him, and cleave unto him.
Deuteronomy 13:18 When thou shalt hearken to the voice of the LORD thy God, to keep all his commandments which I command thee this day, to do that which is right in the eyes of the LORD thy God.
Deuteronomy 19:9 If thou shalt keep all these commandments to do them, which I command thee this day, to love the LORD thy God, and to walk ever in his ways; then shalt thou add three cities more for thee, beside these three:
Deuteronomy 26:17 Thou hast avouched the LORD this day to be thy God, and to walk in his ways, and to keep his statutes, and his commandments, and his judgments, and to hearken unto his voice:
Deuteronomy 26:18 And the LORD hath avouched thee this day to be his peculiar people, as he hath promised thee, and that thou shouldest keep all his commandments;
Deuteronomy 27:1 And Moses with the elders of Israel commanded the people, saying, Keep all the commandments which I command you this day.
Deuteronomy 28:9 The LORD shall establish thee an holy people unto himself, as he hath sworn unto thee, if thou shalt keep the commandments of the LORD thy God, and walk in his ways.
Deuteronomy 28:45 Moreover all these curses shall come upon thee, and shall pursue thee, and overtake thee, till thou be destroyed; because thou hearkenedst not unto the voice of the LORD thy God, to keep his commandments and his statutes which he commanded thee:
Deuteronomy 30:10 If thou shalt hearken unto the voice of the LORD thy God, to keep his commandments and his statutes which are written in this book of the law, and if thou turn unto the LORD thy God with all thine heart, and with all thy soul.
Deuteronomy 30:16 In that I command thee this day to love the LORD thy God, to walk in his ways, and to keep his commandments and his statutes and his judgments, that thou mayest live and multiply: and the LORD thy God shall bless thee in the land whither thou goest to possess it.
Joshua 22:5 But take diligent heed to do the commandment and the law, which Moses the servant of the LORD charged you, to love the LORD your God, and to walk in all his ways, and to keep his commandments, and to cleave unto him, and to serve him with all your heart and with all your soul.
1 Kings 2:3 And keep the charge of the LORD thy God, to walk in his ways, to keep his statutes, and his commandments, and his judgments, and his testimonies, as it is written in the law of Moses, that thou mayest prosper in all that thou doest, and whithersoever thou turnest thyself:
1 Kings 3:14 And if thou wilt walk in my ways, to keep my statutes and my commandments, as thy father David did walk, then I will lengthen thy days.
1 Kings 6:12 Concerning this house which thou art in building, if thou wilt walk in my statutes, and execute my judgments, and keep all my commandments to walk in them; then will I perform my word with thee, which I spake unto David thy father:
1 Kings 8:58 That he may incline our hearts unto him, to walk in all his ways, and to keep his commandments, and his statutes, and his judgments, which he commanded our fathers.
1 Kings 8:61 Let your heart therefore be perfect with the LORD our God, to walk in his statutes, and to keep his commandments, as at this day.
1 Kings 9:6 But if ye shall at all turn from following me, ye or your children, and will not keep my commandments and my statutes which I have set before you, but go and serve other gods, and worship them:
1 Kings 11:38 And it shall be, if thou wilt hearken unto all that I command thee, and wilt walk in my ways, and do that is right in my sight, to keep my statutes and my commandments, as David my servant did; that I will be with thee, and build thee a sure house, as I built for David, and will give Israel unto thee.
2 Kings 17:13 Yet the LORD testified against Israel, and against Judah, by all the prophets, and by all the seers, saying, Turn ye from your evil ways, and keep my commandments and my statutes, according to all the law which I commanded your fathers, and which I sent to you by my servants the prophets.
2 Kings 23:3 And the king stood by a pillar, and made a covenant before the LORD, to walk after the LORD, and to keep his commandments and his testimonies and his statutes with all their heart and all their soul, to perform the words of this covenant that were written in this book. And all the people stood to the covenant.
1 Chronicles 28:8 Now therefore in the sight of all Israel the congregation of the LORD, and in the audience of our God, keep and seek for all the commandments of the LORD your God: that ye may possess this good land, and leave it for an inheritance for your children after you for ever.
1 Chronicles 29:19 And give unto Solomon my son a perfect heart, to keep thy commandments, thy testimonies, and thy statutes, and to do all these things, and to build the palace, for the which I have made provision.
2 Chronicles 34:31 And the king stood in his place, and made a covenant before the LORD, to walk after the LORD, and to keep his commandments, and his testimonies, and his statutes, with all his heart, and with all his soul, to perform the words of the covenant which are written in this book.
2 Chronicles 35:16 So all the service of the LORD was prepared the same day, to keep the passover, and to offer burnt offerings upon the altar of the LORD, according to the commandment of king Josiah.
Nehemiah 1:5 And said, I beseech thee, O LORD God of heaven, the great and terrible God, that keepeth covenant and mercy for them that love him and observe his commandments:
Nehemiah 1:9 But if ye turn unto me, and keep my commandments, and do them; though there were of you cast out unto the uttermost part of the heaven, yet will I gather them from thence, and will bring them unto the place that I have chosen to set my name there.
Esther 2:8 So it came to pass, when the king's commandment and his decree was heard, and when many maidens were gathered together unto Shushan the palace, to the custody of Hegai, that Esther was brought also unto the king's house, to the custody of Hegai, keeper of the women.
Psalm 78:7 That they might set their hope in God, and not forget the works of God, but keep his commandments:
Psalm 89:31 If they break my statutes, and keep not my commandments;
Psalm 103:18 To such as keep his covenant, and to those that remember his commandments to do them.
Psalm 119:60 I made haste, and delayed not to keep thy commandments.
Psalm 119:115 Depart from me, ye evildoers: for I will keep the commandments of my God.
Proverbs 3:1 My son, forget not my law; but let thine heart keep my commandments:
Proverbs 4:4 He taught me also, and said unto me, Let thine heart retain my words: keep my commandments, and live.
Proverbs 6:20 My son, keep thy father's commandment, and forsake not the law of thy mother:
Proverbs 7:1 My son, keep my words, and lay up my commandments with thee.
Proverbs 7:2 Keep my commandments, and live; and my law as the apple of thine eye.
Proverbs 19:16 He that keepeth the commandment keepeth his own soul; but he that despiseth his ways shall die.
Ecclesiastes 8:2 I counsel thee to keep the king's commandment, and that in regard of the oath of God.
Ecclesiastes 8:5 Whoso keepeth the commandment shall feel no evil thing: and a wise man's heart discerneth both time and judgment.
Ecclesiastes 12:13 Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man.
Daniel 9:4 And I prayed unto the LORD my God, and made my confession, and said, O Lord, the great and dreadful God, keeping the covenant and mercy to them that love him, and to them that keep his commandments;
Matthew 19:17 And he said unto him, Why callest thou me good? there is none good but one, that is, God: but if thou wilt enter into life, keep the commandments.
Mark 7:9 And he said unto them, Full well ye reject the commandment of God, that ye may keep your own tradition.
John 14:15 If ye love me, keep my commandments.
John 14:21 He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him.
John 15:10 If ye keep my commandments, ye shall abide in my love; even as I have kept my Father's commandments, and abide in his love.
Acts 15:24 Forasmuch as we have heard, that certain which went out from us have troubled you with words, subverting your souls, saying, Ye must be circumcised, and keep the law: to whom we gave no such commandment:
1 Corinthians 7:19 Circumcision is nothing, and uncircumcision is nothing, but the keeping of the commandments of God.
1 Timothy 6:14 That thou keep this commandment without spot, unrebukeable, until the appearing of our Lord Jesus Christ:
1 John 2:3 And hereby we do know that we know him, if we keep his commandments.
1 John 2:4 He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
1 John 3:22 And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight.
1 John 3:24 And he that keepeth his commandments dwelleth in him, and he in him. And hereby we know that he abideth in us, by the Spirit which he hath given us.
1 John 5:2 By this we know that we love the children of God, when we love God, and keep his commandments.
1 John 5:3 For this is the love of God, that we keep his commandments: and his commandments are not grievous.
Revelation 12:17 And the dragon was wroth with the woman, and went to make war with the remnant of her seed, which keep the commandments of God, and have the testimony of Jesus Christ.
Revelation 14:12 Here is the patience of the saints: here are they that keep the commandments of God, and the faith of Jesus.