2 Kings 19:20

And for this cause Hezekiah the king, and the prophet Isaiah the son of Amoz, prayed and cried to heaven. And the Lord sent an angel, which cut off all the mighty men of valour, and the leaders and captains in the camp of the king of Assyria. So he returned with shame of face to his own land. And when he was come into the house of his god, they that came forth of his own bowels slew him there with the sword.

Turn again, and tell Hezekiah the captain of my people, Thus saith the Lord, the God of David thy father, I have heard thy prayer, I have seen thy tears: behold, I will heal thee: on the third day thou shalt go up unto the house of the Lord.

And this is the confidence that we have in him, that, if we ask any thing according to his will, he heareth us: And if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him.

And said, Cornelius, thy prayer is heard, and thine alms are had in remembrance in the sight of God.

And it shall come to pass, that before they call, I will answer; and while they are yet speaking, I will hear.

Call unto me, and I will answer thee, and shew thee great and mighty things, which thou knowest not.

And one told David, saying, Ahithophel is among the conspirators with Absalom. And David said, O Lord, I pray thee, turn the counsel of Ahithophel into foolishness.

And when he looked on him, he was afraid, and said, What is it, Lord? And he said unto him, Thy prayers and thine alms are come up for a memorial before God.

And I knew that thou hearest me always: but because of the people which stand by I said it, that they may believe that thou hast sent me.

And when Ahithophel saw that his counsel was not followed, he saddled his ass, and arose, and gat him home to his house, to his city, and put his household in order, and hanged himself, and died, and was buried in the sepulchre of his father.

And whiles I was speaking, and praying, and confessing my sin and the sin of my people Israel, and presenting my supplication before the Lord my God for the holy mountain of my God; Yea, whiles I was speaking in prayer, even the man Gabriel, whom I had seen in the vision at the beginning, being caused to fly swiftly, touched me about the time of the evening oblation. And he informed me, and talked with me, and said, O Daniel, I am now come forth to give thee skill and understanding. At the beginning of thy supplications the commandment came forth, and I am come to shew thee; for thou art greatly beloved: therefore understand the matter, and consider the vision.

Then shalt thou call, and the Lord shall answer; thou shalt cry, and he shall say, Here I am. If thou take away from the midst of thee the yoke, the putting forth of the finger, and speaking vanity;

Thou shalt make thy prayer unto him, and he shall hear thee, and thou shalt pay thy vows.

And call upon me in the day of trouble: I will deliver thee, and thou shalt glorify me.

O thou that hearest prayer, unto thee shall all flesh come.