What does the Bible say about forgiveness in Christ?

The forgiveness that Christ offers is described as complete and absolute, meaning that when He says, 'Thy sins be forgiven thee,' He is forgiving all iniquities without exception. This is grounded in Scripture, such as Psalm 103:3, which states, 'Who forgiveth all thine iniquities.' Further, this forgiveness is not based on our merit but is given freely and justly because Christ satisfied God's justice through His atoning sacrifice. Since it is rooted in His eternal purpose and grace, forgiveness from Christ is immutable, meaning it does not change based on our actions or feelings.