Therefore, if anyone is in Christ, he is a new creation; old things have passed away; behold, all things have become new. – 2 Corinthians 5:17

He says, “Behold I make all things new.” Behold Him! He is a man dressed in the common garments of the poor! He hath no form nor comeliness, and when you shall see Him there is no beauty in Him that you should desire Him. He has come to make the world new. He has no soldiery, no book of laws, no new philosophy. He had come to make the world new, and to do this He has brought with Him-what? Why, Himself. He spends a life of weariness and sorrow amongst those who despise Him, and if you want to know first and foremost how He makes all things new, you must see Him sweating great drops of blood in the garden-that is the blood of the new world which He is pouring forth! You must see Him bound, scourged, spat upon, led to the accursed tree. While God’s wrath for sin is yet unspent, the world cannot be new; but when that wrath on account of sin is all poured upon the head of the great Substitute, then the world stands in a new relation to God, and it can be a new world. See the Saviour then, in groans and pangs which cannot be described, bearing the curse of God, for He made Him to be sin for us, though He knew no sin. The curse fell on Him, as it is written, “Cursed is every one that hangeth on a tree.” It pleased the Father to bruise Him; He hath put Him to grief; He hath made His soul to be an offering for sin.” That dolorous pain, then, of the Master was the world’s new- making. It was then and there that the world was born again. No mother’s pangs, when she brought forth a man-child, were such as those of Christ when He brought forth the new creation. It was there in the travail of His soul-did you ever catch that idea, the travail of His soul?-it was there that the new world was born! “Behold I make all things new” is a mysterious voice from the broken heart of a dying Saviour. From the empty tomb, as He rises, I hear it come in silvery notes, “Behold I make all things new.” You must trace the birth of the new creation up to the grave of our Lord Jesus Christ, to the place where the cross stood, and where His body lay.~ C.H. Spurgeon

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