don’t fight your sins in your own power — C. H. Spurgeon

"But we must take our sins to God too. Possibly this is a more difficult point. The sinner thinks that he must fight this battle for himself, wrestle with his own evil temper himself, and he himself must enter into conflict with his lusts and his besetting sins; but when he comes into the fight, he soon meets with a defeat, and then he is ready to give it all up. Take your sins to God, my brethren. Take them to the cross that the blood may fall upon them, to purge away their guilt, and to take away their power. Your sins must all be slain. There is only one place where they can be slaughtered—the altar where your Saviour died. If you would flog your sins, flog them with the whip that tore your Saviour’s shoulder. If you would nail your sins fast, drive the same nails through them which fastened your Lord to the cross; I mean, let your faith in the great Surety, and your love to him who suffered so much for you, be the power with which you do conflict with evil. It is said of the saints in heaven, “They overcame through the blood of the Lamb.” That is how you must overcome. Go to Jesus with your sins; no one else can help you; you are powerless without him."

C. H. Spurgeon (1867). The Metropolitan Tabernacle Pulpit Sermons, Vol. XIII (164–165). London: Passmore & Alabaster.