Bible Verses About Old testament prophets

Surely the Lord God will do nothing, but he revealeth his secret unto his servants the prophets.KJV

Before I formed thee in the belly I knew thee; and before thou camest forth out of the womb I sanctified thee, and I ordained thee a prophet unto the nations.KJV

Also I heard the voice of the Lord, saying, Whom shall I send, and who will go for us? Then said I, Here am I; send me.KJV

But my words and my statutes, which I commanded my servants the prophets, did they not take hold of your fathers? and they returned and said, Like as the LORD of hosts thought to do unto us, so hath he dealt with us.KJV

For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.KJV