Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God. – John 3:3

Behold, the Lord Jesus is now enthroned in heaven. He it is who makes all things new. Is not this what some of you deeply need? If you look within, yourselves will see much to disgust and alarm you. Peradventure, you dare not take stock of yourselves now; you dare not consider where you are, nor what you are, nor whither you are bound. “To speak candidly,” you say, “I want reforming.” Very likely, but you want a great deal more than mere reformation. I have heard of a being who used habitually to swear, “God mend me!” Somebody said, “Better make a new one.” That is the case with full many of you. You are saying, “Well, I will turn over a new leaf.” You had better shut the book up altogether, and never turn over any more leaves, for all the pages are alike bad. “Oh! well,” says one, “I shall try if I cannot alter.” I wish you would try God’s altering of you, instead of altering yourselves. “Well, but surely, surely, I may wash and be clean; I will try to make myself as clean as possible?” Yes, yes, that is all very well; but what if you have a corpse in the house? I would have you make it clean, yet that will not make it live. However much you may wash it, it is corrupt still. You may reform yourselves as much as ever you please, all your reformation will be futile; you need more, a great deal more than that. The fact is, you must be made new. Nothing less will do; you must be made new; you must be born again. “Ah!” says one, “if I could be made new, there might be a chance for me.” Well now, Christ looks down from His throne in heaven, and He says, “Behold I will make all things new.”…Do not be afraid, however bad thy character, or however vicious thy disposition. “Behold,” says Christ, “I make all things new.” What a wonder it is that a man should ever have a new heart!

I am glad to notice the tear in your eye, when you think on the past, but wipe it away now, and look up to the cross and say:-

“Just as I am, without one plea,
But that Thy blood was shed for me,
And that Thou bid’st me come to Thee,
O Lamb, O God, I come.”

~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/3467.cfm