On the ever disingenuous, exegesis-lacking Beggar's Bread blog, there is a new post entitled
To see the eisegesis behind their abuse of Moroni 8:18 and other like-texts, including Psa 90:2, see:
Furthermore, LDS, not Trinitarians, can agree with the totality of the Bible on the "number" of God, including Isa 43:10 and 44:6, texts they quote (but do not exegete). For instance, see the section on the "Number of God" in:
Another exegetical hit-and-miss from the Beggar's Bread blog.