“And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of My hand.” – John 10:28
Our union with Christ is not only lasting, it is everlasting. With great boldness we utter the challenge. “Who shall separate us from the love of God which is in Christ Jesus our Lord?” It is true that we hold Christ, and that we will hold Him tighter still; but the greater mercy is that He holds us, and He will never let us go… You may take Christ from our hand, but you cannot take us from Christ’s hand; He holdeth us fast; He is married to us, and He Himself declares, “The Lord, the God of Israel, saith that He hateth putting away.” He will have no divorce between our soul and Himself. This living, loving, lasting union, which we have already found to be such a glorious reality, is to last for ever and ever, blessed be the name of the Lord!
I want you, beloved friends, to draw much comfort from this truth: Christ will not lose His members. My head would not willingly lose a little finger, and Christ our Head will not lose one of us if “we are members of His body, of His flesh, and of His bones.” Think you that Christ can be mutilated? Think you that He will lose even the least joint of the least finger? Never shall that be true. The word written of His body of flesh is equally true concerning His mystical body, which is His Church. “A bone of Him shall not be broken.” Not even the smallest and most insignificant believer in Christ shall be lost, else would His body be incomplete. He is a perfect Christ, and you that are members of His body shall never be cut away from Him by the wounds of Satan’s sword, the surgery of infidelity, or any earthly accident or diabolical temptation. If you are one with Him, you will be one with Him for ever, for the union between you and your Lord is an eternal union, and to break it would be to disfigure and mutilate the Christ of God. ~ C.H. Spurgeon
https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2245.cfm