Bible Verses About Prophets: Specially raised up on occasions of emergency

And Samuel groweth up, and Jehovah hath been with him, and hath not let fall any of his words to the earth;

and all Israel know, from Dan even unto Beer-Sheba, that Samuel is established for a prophet to Jehovah.

And Jehovah addeth to appear in Shiloh, for Jehovah hath been revealed unto Samuel, in Shiloh, by the word of Jehovah.

And I hear the voice of the Lord, saying: `Whom do I send? and who doth go for Us?' And I say, `Here am I, send me.'

And He saith, `Go, and thou hast said to this people, Hear ye--to hear, and ye do not understand, And see ye--to see, and ye do not know.

`Before I form thee in the belly, I have known thee; and before thou comest forth from the womb I have separated thee, a prophet to nations I have made thee.'