Teaching about Vows

³³ “You have also heard that our ancestors were told, ‘You must not break your vows; you must carry out the vows you make to the Lord.’^{[a] 34} But I say, do not make any vows! Do not say, ‘By heaven!’ because heaven is God’s throne. ³⁵ And do not say, ‘By the earth!’ because the earth is his footstool. And do not say, ‘By Jerusalem!’ for Jerusalem is the city of the great King. ³⁶ Do not even say, ‘By my head!’ for you can’t turn one hair white or black. ³⁷ Just say a simple, ‘Yes, I will,’ or ‘No, I won’t.’ Anything beyond this is from the evil one.

⁵ It is better to say nothing than to make a promise and not keep it.

²¹ “When you make a vow to the Lord your God, be prompt in fulfilling whatever you promised him. For the Lord your God demands that you promptly fulfill all your vows, or you will be guilty of sin. ²² However, it is not a sin to refrain from making a vow. ²³ But once you have voluntarily made a vow, be careful to fulfill your promise to the Lord your God.

² A man who makes a vow to the Lord or makes a pledge under oath must never break it. He must do exactly what he said he would do.

¹¹ And she made this vow: “O Lord of Heaven’s Armies, if you will look upon my sorrow and answer my prayer and give me a son, then I will give him back to you. He will be yours for his entire lifetime, and as a sign that he has been dedicated to the Lord, his hair will never be cut.^[a]”