It's interesting to me how people in the Bible negotiate with God in their prayers. Here, Hannah expresses her belief that God will listen, that He can be moved to act, and that the future is not predetermined.

Do you pray like Hannah?

1 Samuel 1:11 And she vowed a vow, and said, O LORD of hosts, if thou wilt indeed look on the affliction of thine handmaid, and remember me, and not forget thine handmaid, but wilt give unto thine handmaid a man child, then I will give him unto the LORD all the days of his life, and there shall no razor come upon his head.