Leviticus 5:15-16 If a soul commit a trespass, and sin through ignorance, in the holy things of the Lord; then he shall bring for his trespass unto the Lord a ram without blemish out of the flocks…for a trespass offering: and he shall make amends for the harm that he hath done in the holy thing, and shall add the fifth part thereto.
When a believer becomes aware of his trespass and sin, his response is to bring a ram without blemish for a trespass offering, and make amends for the harm and make restitution with an additional reparation. He does not make amends to earn forgiveness, but because he has been forgiven through the sacrifice.
This particular response was for a trespass in the holy things, but it applies to any trespass against a neighbor for his harm or diminishment. The believer will bring the Lamb of God and His offering to the Lord, receive forgiveness and restoration, and then make amends to the offended party for the loss. This is what Zacchaeus did after Jesus came to his house: “If I have defrauded anyone of anything, I restore it fourfold.” This is AA’s famous 11th step.
Making amends is not required for forgiveness and salvation, but as a response to salvation it makes life better in relation to God, self, and others. And that’s a good thing.