When my grandmas canned fruits and vegetables the last step in the process was sealing the jars. After purifying and filling them completely, the seal maintained an air-tight, vacuum inside the jar. Nothing could get inside that might contaminate or spoil the contents.
God does the same thing with us in His perfect canning process. After He has purified us completely, then filled us with His Holy Spirit, He seals us to prevent anything or anyone from contaminating us. The seal prevents us from spoiling, fading or wrinkling.
And you also were included in Christ when you heard the message of truth, the gospel of your salvation. When you believed, you were marked in him (in Christ) with a seal, the promised Holy Spirit, who is a deposit guaranteeing our inheritance until the redemption of those who are God’s possession (That’s you and me)—to the praise of his glory. Ephesians 1:13-14
Many folks don’t understand this concept either, in my view. I know earnest believers who worry about losing their salvation. But God’s word says once we’re purified on the cross, filled with Christ and sealed with the Holy Spirit, nothing can ever change that.
One common argument some believers cling to is, “Yes, but you don’t know where I’ve been or what I’ve done.”
“No,” I tell them. “But God does. He loves everybody the same anyway. There’s nothing anyone can do to make God love them any less and there’s nothing anyone can do to make God love them more.”
That’s why Jesus uses the word, “whosoever” in John 3:16. Whosoever includes anyone, all, every man, woman and child on earth.
And when God finishes His canning process, we are complete: purified, filled and sealed. Waiting in eager anticipation for Jesus’ return. Waiting for the day of our salvation. The day Jesus comes to take us home. Nothing or no one can change that.
My sheep listen to my voice; I know them, and they follow me. I give them eternal life, and they shall never perish; no one will snatch them out of my hand. John 10:27-28.