This is a tragic misunderstanding of the Gospel. At the cross, Jesus put away all sin, not just part of it, past, present, and future. Not future sins says the Catholic. Well, when Christ died,
how much of your sin was future? Well, all of it I hope. Yes, all your sin is under the blood. God remembers it no more Heb.10:17. Now it is also understood that we still sin, but that does not disqualify us .Why not? Because" He ever liveth to make intercession for (us)"Heb7:25. I may fail, but Jesus does not. If Israel fails, does it cancel the covenant?
Law keepers rebel against this because they think it will cause people to sin more, but this expression of God’s love actually produces the opposite.