Leviticus 6:5

or all that about which he hath sworn falsely; he shall even restore it in the principal, and shall add the fifth part more thereto, as a penalty or forfeit, and give it unto him to whom it appertaineth, in the day of his trespass-offering. The unlawfully gotten gain having been restored to his neighbor, the Lord also had to he reconciled, because the transgression was also directed against Him, Psalms 51:4. So man could seek the divine forgiveness without having done all in his power to make amends for the wrong committed.