He forgave sins based on what? Are you suggesting that the cross was meaningless? Why couldn't Jesus skip the cross and tell people to just keep sacrificing animals?
Jesus was a living sacrifice, he sacrificed his whole life for God, he was without spot or blemish because he didn't sin. His natural death on the cross doesn't save anyone, he was murdered by wicked men, by the power of darkness, there is no darkness in God whatsoever.
Jesus was dead to his flesh, he denied his own will and and lived by the will of God completely, he was sent by God, and he came to bare witness to the truth and in doing so he saved those who believed on him through the gospel, by the word of God, and those who believe and have faith are saved from this world of sin and death through him, by the power of the Spirit, through faith by the grace of God. The natural blood of Christ can't save anyone, his blood that saves is his blood within, it's his life within us that saves us and he helps us to overcome, not his death on the cross. The true cross is the cross he bore just like he tells us to take up our cross and follow him. Jesus said that if we don't eat his flesh or drink his blood, then we have no life in us, he isn't speaking naturally.
How does the natural death of Jesus save you? I hear people say that God came and was crucified to save us, why? Why would God need to come in flesh and be crucified by wicked men to save us from his own wrath? What is the sense in that? God just wouldn't need to do that. And even worse still, some people think that Jesus has died on the cross and they are eternally saved even if they carry on wilfully sinning, that's just not the truth! We must live by the will of God once we know the truth, and those who truly worship God do so, and as they walk in the Spirit they worship God in Spirit and in truth, and they then bare witness to the truth themselves truly following Christ Jesus.
God wants our hearts changed, and he wants to see the life of his son in and through us, without the the Spirit we are dead to God as we have no life in us the life of Christ is made manifest in our hearts through the Spirit of truth and life. So God sent Jesus to bare witness to the truth to bring life and light to those in darkness, to show us how to live right before God and preach the truth. And we are saved through him. And once we listen to the truth and turn away from this world and start obey what Jesus teaches, then God will bless us with eternal life, which is the Holy Spirit in the heart and he will help us to overcome, and we are to endure to the end and keep our faith to have the hope of eternal salvation.
God knew what would happen to Jesus once he came into this world of sin, and he foretold it through the prophets, and Jesus was willing to bare it to preach the gospel of truth and live it out to save a many as possible. And he also had to bare whatever was set before him including the cross and bare it and overcome satan by not sinning and taking whatever satan did to him through wicked men and show love and mercy to all regardless of what he went through. And in doing so, he won satan on his own ground he overcame him and satan couldn't get him to sin in any way, even scourging and killing him couldn't get him to sin or turn against God. And he was our perfect example to follow, no matter what we go through in this lifetime, we are to hold on and keep our faith, Christ Jesus is like our life ring in the darkest of seas, and he will help us from going under if we keep our faith and live by the will of God.
Death doesn't save, life saves. We are saved by the life of Christ.