'Petitions' in the Bible

I set my face to the Lord God, to seek by prayer and petitions, with fasting and sackcloth and ashes.

Now therefore, our God, listen to the prayer of your servant, and to his petitions, and cause your face to shine on your sanctuary that is desolate, for the Lord's sake.

My God, turn your ear, and hear; open your eyes, and see our desolations, and the city which is called by your name: for we do not present our petitions before you for our righteousness, but for your great mercies' sake.

At the beginning of your petitions the commandment went forth, and I have come to tell you; for you are greatly beloved: therefore consider the matter, and understand the vision.