Hebrews 6:16

6:16 For people swear by something greater than themselves, and the oath serves as a confirmation to end all dispute.

Genesis 26:28

26:28 They replied, “We could plainly see that the Lord is with you. So we decided there should be a pact between us – between us and you. Allow us to make a treaty with you

Exodus 22:11

22:11 then there will be an oath to the Lord between the two of them, that he has not laid his hand on his neighbor’s goods, and its owner will accept this, and he will not have to pay.