Numbers 30:2

2 If a man vow a vow unto the LORD, or swear an oath to bind his soul with a bond; he shall not break[a] his word, he shall do according to all that proceedeth out of his mouth.

Numbers 30:2 In-Context

1 And Moses spake unto the heads of the tribes concerning the children of Israel, saying, This is the thing which the LORD hath commanded.
2 If a man vow a vow unto the LORD, or swear an oath to bind his soul with a bond; he shall not break his word, he shall do according to all that proceedeth out of his mouth.
3 If a woman also vow a vow unto the LORD, and bind herself by a bond, being in her father's house in her youth;
4 And her father hear her vow, and her bond wherewith she hath bound her soul, and her father shall hold his peace at her: then all her vows shall stand, and every bond wherewith she hath bound her soul shall stand.
5 But if her father disallow her in the day that he heareth; not any of her vows, or of her bonds wherewith she hath bound her soul, shall stand: and the LORD shall forgive her, because her father disallowed her.

Footnotes 1

The King James Version is in the public domain.