Behold, I make all things new. – Revelation 21:5

After the relation of the world to God had been changed by the sufferings of Jesus, the world’s thought concerning God came to be changed by the preaching of Jesus. He came and revealed God to man as man had never seen God before. It was through Him we learned that “God is love.” It was through Him that we understood that “God so loved the world that He gave His only begotten Son that whosoever believeth in Him should not perish, but have everlasting life.” It is the preaching of the cross of Jesus that is to make the world new.

And it is also by the giving of the Holy Ghost, as the result of the ascension of Christ on high, that the world is made new. Thus He gives power to the ministry. There were three thousand new creations in one day when Peter preached the Gospel under the influence of the Holy Spirit…Oh! I would that there might be some new creations, that that divine heavenly Spirit would come into some of your souls, and drop there that vital spark of heavenly flame which shall never be quenched, but shall burn brightly in heaven for ever. Wherever the Gospel is preached, the Spirit is present in that Gospel, and He gives faith to men, gives life to men, and so they are made new, and the new-making thus goes on.

I might go on to speak of His constant and prevalent intercessions, for His pleading before the throne is also a part of the mighty operation; nor can I doubt but that His Second Advent will be the bringing out of the topstone with shoutings of “Grace, grace unto it!” Then shall be fulfilled-finally and exhaustively fulfilled-the saying that is written, “Behold I make all things new.” The text begins with “Behold!” and I am going to close with that same note of admiration. ~ C.H. Spurgeon

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