Numbers 5:19

And the priest shall charge her by an oath, and say unto the woman, If no man have lain with thee, and if thou hast not gone aside to uncleanness with another instead of thy husband, be thou free from this bitter water that causeth the curse:

Cross-reference

Numbers 5:12 introduces the case of a wife going astray; here the priest administers the oath based on that accusation.

Numbers 5:28 shows the outcome of the oath in 5:19: if innocent, she is free and can conceive.

Numbers 5:29 is the concluding summary of this law, labeling it the law of jealousy.

2 Chronicles 6:22 describes Solomon's prayer for oaths and curses, echoing the oath-taking ritual here.