They will never perish

We believe in the eternal security of the saints. First, because they belong to Christ, and He will never lose the sheep that He has bought with His blood, and that He has received from His Father.

Next, because He gives you eternal life, and if it's eternal, well, then it's eternal, and there can't be a term for that life, unless there can be a term for hell, and for heaven, and for God. . If spiritual life could be extinguished, then it would manifestly not be eternal life, but temporal life. But the Lord speaks of eternal life, and that effectively eliminates the possibility of an end.

Observe, furthermore, that the Lord expressly says: "They shall never perish." As long as the words have meaning, this guarantees believers that they will not perish. The most stubborn unbelief cannot remove that meaning from this phrase.

Then, to complete the matter, He declares that His people are in His hand, and challenges all His enemies to snatch Him away. It is certainly something impossible even for the demon from hell. We are safe, since we are in the hand of an Almighty Savior.

It is up to us to cast off carnal fear as well as carnal confidence, and rest peacefully in the palm of the Redeemer's hand.

Source: The Bank of Faith Checkbook. Translation by Allan Roman.

http://www.spurgeon.com.mx/chequera/meditames/junio.pdf