I hardly know where to begin, so let me make it simple: if I am required to keep all ten of the commandments in their entirety, with no slips (which, you would have to admit, includes Jesus' modifications) to avoid experiencing the curse, what was the purpose of Jesus' suffering, death and resurrection???
“if I am required to keep all ten of the commandments in their entirety...what was the purpose of Jesus’ suffering, death and resurrection???”
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The main point of the cammandments is to help us not hinder humanity. Do these and you shall live. If you study David’s fall and repentance regarding Bathsheba’s husband and herself, you see that in the same sentance almost where the prophet Nathan pronounces God’s forgiveness, he prophesies God’s punishment too. These are the outgrowths of sin. The curses also help wayward men to reform their lives when they see what harm sin causes. Thus it is a form of God’s correction, even thought severe, not condemnation.
It is helpful to appreciate the full spectrum of God’s word, not to see it from only one facet.
Yes, Jesus’ sacrifice is necessary to procure God’s forgiveness. And Jesus then after forgiving us says “Go your way and sin no more.” The ten commandments help us to examine our lives to see not only how to not offend God but to see how to promote a healthy humanity.