Jesus Christ
Behold, I am God; give heed to my word, which is quick and powerful, sharper than a two-edged sword, to the dividing asunder of both joints and marrow; therefore, give heed unto my word. Doctrine and Covenants 12:2
The God speaking is the one who calls Himself the light and the life of the world in verse 9, Jesus Christ.
AttestedExplicitHe speaks in the first person
How we know: the verse itself names Him
- alludes to Hebrews 4:12 — the word of God sharper than any two-edged sword
- a parallel account in D&C 11:2 — the same opening words
