1 Kings 18:42

Now therefore send, and gather to me all Israel unto mount Carmel, and the prophets of Baal four hundred and fifty, and the prophets of the groves four hundred, which eat at Jezebel’s table. So Ahab sent unto all the children of Israel, and gathered the prophets together unto mount Carmel.

And it was so, when Elijah heard it, that he wrapped his face in his mantle, and went out, and stood in the entering in of the cave. And, behold, there came a voice unto him, and said, What doest thou here, Elijah?

David therefore besought God for the child; and David fasted, and went in, and lay all night upon the earth.

On the morrow, as they went on their journey, and drew nigh unto the city, Peter went up upon the housetop to pray about the sixth hour:

And I set my face unto the Lord God, to seek by prayer and supplications, with fasting, and sackcloth, and ashes:

O Lord, righteousness belongeth unto thee, but unto us confusion of faces, as at this day; to the men of Judah, and to the inhabitants of Jerusalem, and unto all Israel, that are near, and that are far off, through all the countries whither thou hast driven them, because of their trespass that they have trespassed against thee.

And said, O my God, I am ashamed and blush to lift up my face to thee, my God: for our iniquities are increased over our head, and our trespass is grown up unto the heavens.

And it came to pass, that, when Abraham’s servant heard their words, he worshipped the Lord, bowing himself to the earth.

Then Hezekiah turned his face toward the wall, and prayed unto the Lord,

And Joshua rent his clothes, and fell to the earth upon his face before the ark of the Lord until the eventide, he and the elders of Israel, and put dust upon their heads.

And it came to pass in those days, that he went out into a mountain to pray, and continued all night in prayer to God.

And he went forward a little, and fell on the ground, and prayed that, if it were possible, the hour might pass from him.

And when he had sent the multitudes away, he went up into a mountain apart to pray: and when the evening was come, he was there alone.

God is greatly to be feared in the assembly of the saints, and to be had in reverence of all them that are about him.

Above it stood the seraphims: each one had six wings; with twain he covered his face, and with twain he covered his feet, and with twain he did fly.

Confess your faults one to another, and pray one for another, that ye may be healed. The effectual fervent prayer of a righteous man availeth much. Elias was a man subject to like passions as we are, and he prayed earnestly that it might not rain: and it rained not on the earth by the space of three years and six months. And he prayed again, and the heaven gave rain, and the earth brought forth her fruit.