'Prayers' in the Bible

When Daniel realized that a written decree had been issued, he entered his home, where the windows in his upper room opened toward Jerusalem. Three times daily he was kneeling and offering prayers and thanks to his God just as he had been accustomed to do previously.

Then these men were watching and saw Daniel making prayers and requesting grace before his God.

O my God, let your ear be turned and give hearing; let your eyes be open and see how we have been made waste and the town which is named by your name: for we are not offering our prayers before you because of our righteousness, but because of your great mercies.

At the beginning of your supplications, the command [to give you an answer] was issued, and I have come to tell you, for you are highly regarded and greatly beloved. Therefore consider the message and begin to understand the [meaning of the] vision.

“Don’t be afraid, Daniel,” he said to me, “for from the first day that you purposed to understand and to humble yourself before your God, your prayers were heard. I have come because of your prayers.