God's Forgiveness Through a Mediator
Analogy★★★★When God absolves, it is only in one way, that is—through a Mediator. His concern for the fundamental principles of His government is the highest concern in His divine nature. God cannot forgive sin at the expense of His justice, His holiness, or His truth. It is through the blood of Christ alone that He can do this. Justice asked for the sufferings of a man - Christ rendered the sufferings of a God: hence the Fount of Infinite Justice now waits to forgive; and He forgives, für Christ’s sake, the moment that we ask Him. He is just, and yet the justifier of him that believeth in Jesus.
Also attributed to: Unknown
The point
God can only forgive through a Mediator, Jesus Christ, because His justice, holiness, and truth cannot be compromised. Through Christ's sacrifice, God remains just while justifying believers.