"I will testify"

1. Ps. 50: 7
     7 Hear, O my people, and I will speak; O Israel, and I will testify against thee: I am God, even thy God.
2. Ps. 81: 8
     8 Hear, O my people, and I will testify unto thee: O Israel, if thou wilt hearken unto me;
3. Alma 34: 8
     8 And now, behold, I will testify unto you of myself that these things are true. Behold, I say unto you, that I do know that Christ shall come among the children of men, to take upon him the transgressions of his people, and that he shall atone for the sins of the world; for the Lord God hath spoken it.