'Prayer' 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.

yes, while I was speaking in prayer, 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 offering.