And ye know that He was manifested to take away our sins; and in Him is no sin. -1 John 3:5

Believer, read these words in two senses. He was manifested to take away thy sins that thou hast committed; and that He accomplished, when “the just for the unjust,” He sustained the penalties of them. And He was manifested to take away the power of thy sins; that is to say, to conquer thy reigning lusts, to take away thine evil imaginations, to purify thee, and make thee like Himself. Well, beloved, what a mercy it is that some one was manifested to take away our sins from us! for some of us have been striving a long, long while, to conquer our sins, and we cannot do it. We thought we had driven them out, but they had “chariots of iron,” and we could not overcome them; they lived “in the hill country,” and we could not get near them. As often as we worsted them in one battle, they came upon us thick and strong, like an army of locusts; when heaps and heaps had been destroyed they seemed as thick as ever. Ah! but there is a thought-they shall all be taken away. “Ye know that He was manifested to take away our sins;” and so He will. The time will come when you and I shall stand without spot or blemish before the throne of God: for they are “without fault before the throne of God” at this moment, and so shall we be ere long.~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0062.cfm