'Praying' in the Bible

Before he had finished praying, there came Rebekah with her water jug on her shoulder. She was the daughter of Bethuel son of Milcah (Milcah was the wife of Abraham's brother Nahor).

"Before I finished praying in my heart, along came Rebekah with her water jug on her shoulder! She went down to the spring and drew water. So I said to her, 'Please give me a drink.'