I believe God has revealed Himself eternally as Father, Son, and Spirit. (Dr. Michael L. Brown, showing himself to be a closet Modalist [image here])
Steven Richie, a Oneness Pentecostal apologist (a group that teaches Modalism), correctly points out that, in his presentations/defences of the Trinity, Michael Brown slips into Modalism (as do most, if not all, Trinitarian apologists):
Dr. Michael Brown Sounds Like a Oneness Pentecostal, Part 1
Dr. Michael Brown Sounds Like a Oneness Pentecostal, Part 2
To get to the truth of Christology, may I suggest the following:
Latter-day Saints have Chosen the True, Biblical Jesus