To a foreigner you may lend upon interest, but to your brother you shall not lend upon interest; that the Lord your God may bless you in all that you undertake in the land which you are entering to take possession of it.
And this is the manner of the release: every creditor shall release what he has lent to his neighbor; he shall not exact it of his neighbor, his brother, because the Lord's release has been proclaimed.
“When you make a vow to the Lord your God, you shall not be slack to pay it; for the Lord your God will surely require it of you, and it would be sin in you.