While I was with them in the world, I kept them in Thy name: those that Thou gavest Me I have kept, and none of them is lost, but the son of perdition; that the scripture might be fulfilled. – John 17:12

This is the triumph of Christ, “Of all those whom Thou hast given Me, I have lost none” Now, suppose there to be heard a whisper from the infernal pit, “aha! Aha! Thou liest! There is one here whom the Father gave Thee, but who Thou didst lose”-why, Christ would never be able to speak again by way of triumph! He could never boast any more. Then might He put down His crown. If it were but to happen in that one case, at any rate, the enemy would have got the advantage over Him, and He would not have been the Conqueror all along the line. But, glory be to God! He who trod the winepress with none for His assistant, came forth out of the crimson conflict, having smitten all His foes, and won a complete victory. There shall not be in the whole campaign a single point over which Satan shall be able to boast.

Christ has brought many sons to glory as the Captain of their salvation, and never yet has He failed, and He never shall in any point, neither the least nor the greatest, neither the strongest nor the weakest. This is essential, dear friends. It is essential to the acclamations of heaven, that every soul that believes in Jesus should live for ever. It is essential to the everlasting harmony and to the joy of Christ throughout Eternity, that all who trust in Him should be preserved and kept safe, even until the end.  ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/3401.cfm