1 Samuel 1:10-12

10Deeply hurt, Hannah prayed to the Lord and wept with many tears.

11Making a vow, she pleaded, “Lord of Armies, if you will take notice of your servant’s affliction, remember and not forget me, and give your servant a son, I will give him to the Lord all the days of his life, and his hair will never be cut.”

12While she continued praying in the Lord’s presence, Eli watched her mouth.