The scriptural root of a baby dedication is found in 1 Samuel 1:27–28 (NASB), where a godly woman named Hannah prayed year after year for God to give her a child. He answered her prayer and she gave birth to a son, whom she named Samuel. When Samuel was born, Hannah prayed these words:

“For this boy I prayed, and the Lord has given me my petition which I asked of Him. So I have also dedicated him to the Lord; as long as he lives he is dedicated to the Lord.”

— 1 Samuel 1:27-28