1 Samuel 1:9-11

So Hannah ate. Then she pulled herself together, slipped away quietly, and entered the sanctuary. The priest Eli was on duty at the entrance to GOD’s Temple in the customary seat. Crushed in soul, Hannah prayed to GOD and cried and cried—inconsolably. Then she made a vow: Oh, GOD-of-the-Angel-Armies, If you’ll take a good, hard look at my pain, If you’ll quit neglecting me and go into action for me By giving me a son, I’ll give him completely, unreservedly to you. I’ll set him apart for a life of holy discipline.