sin

1 Kings 8:31, 32
When a man sins against his neighbor and is required to take an oath, and he comes to take an oath before Your altar in this temple, . . .

and an oath, etc.

Exodus 22:11
an oath before the LORD shall be made between the parties to determine whether or not the man has taken his neighbor's property. The owner must accept the oath and require no restitution.

Leviticus 5:1
If someone sins by failing to testify when he hears a public charge about something he has witnessed, whether he has seen it or learned of it, he shall bear the iniquity.

Proverbs 30:9
Otherwise, I may have too much and deny You, saying, "Who is the LORD?" Or I may become poor and steal, profaning the name of my God.

the oath

Numbers 5:19-22
And he is to require the woman to take an oath and say to her, 'If no other man has slept with you and you have not gone astray and become defiled while under your husband's authority, may you be immune to this bitter water that brings a curse. . . .

Matthew 23:18
And you say, 'If anyone swears by the altar, it means nothing; but if anyone swears by the gift on it, he is bound by his oath.'