1 Samuel 1:10-11

10She, 1greatly distressed, prayed to the Lord and wept bitterly. 11And she 2made a vow and said, “Lord of armies, if You will indeed 3look on the affliction of Your bond-servant and remember me, and not forget Your bond-servant, but will give Your bond-servant a 4son, then I will give him to the Lord all the days of his life, and 5a razor shall never come on his head.”