Have you made a loan to one of your own people? Then forgive what is owed to you. You can’t require that person to pay you back. The Lord’s time to forgive what is owed has been announced.
You can charge interest to people from another country. But don’t charge your own people. Then the Lord your God will bless you in everything you do. He will bless you in the land you are entering to take as your own.
Don’t put off giving to the Lord your God everything you promise him. He will certainly require it from you. And you will be guilty of committing a sin.