While you make a good point about the logic of the atonement, Your perspective is lacking in depth. The atonement serves a significant purpose that goes beyond mere forgiveness; it is fundamentally about addressing and appeasing God's wrath against sin. While some Christians may be led to believe that the primary aim of the atonement is simply to confer forgiveness, this understanding misses a deeper truth. The core intention of the atonement is to act as a propitiation, a means through which God's righteous anger is satisfied. This profound act of sacrifice not only clears the way for forgiveness but also empowers Jesus to stand as an advocate and intercessor for those who place their faith in him. Through this process, believers are assured of His continual support and representation before God.
Jesus willingly offered his blood on the cross, an act rooted in his profound obedience to the Father. This sacrificial act not only demonstrated his unwavering commitment but also granted him the unique authority to intercede on behalf of those who follow him. By appeasing God's wrath through his sacrifice, Jesus establishes a compassionate bridge between humanity and the divine, making it possible for God to respond favorably to Jesus’ pleas for forgiveness and mercy towards his followers.
Jesus warned his disciples that people would come in his name, casting out demons, but he will say "get away from me. I never knew you." In this way, Jesus emphasized the profound importance of knowing and being known by Jesus. John, in his first letter, picks up this theme in his discussion of the propitiation.
My little children, I am writing these things to you so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous; 2 and He Himself is the propitiation for our sins; and not for ours only, but also for
those of the whole world.
1John 2:1-6 My little children, I am writing these things to you so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous; and He Himself is the propitiation for our sins; and not for ours only, but also for those of the whole world. By this we know that we have come to know Him, if we keep His commandments. The one who says, “I have come to know Him,” and does not keep His commandments, is a liar, and the truth is not in him; but whoever keeps His word, in him the love of God has truly been perfected. By this we know that we are in Him: the one who says he abides in Him ought himself to walk in the same manner as He walked.
John reveals who has an advocate with the Father: those who know him. Jesus' advocacy is predicated on the fact that the Father's wrath was appeased through his death on the cross.