To whom does the Trinity entrust your protection? You “were sealed with the promised Holy Spirit” (Ephesians 1:13 ESV). We have been once-and-for-all-time sealed by the Spirit for redemption.
Seal. You know the verb. You twist a jar to seal the pickles; you notarize the contract to seal the deal. Sealing declares ownership and secures contents. Sealing says, “This is mine, and this is protected.”
When you accepted Christ, God sealed you with the Spirit. He cocooned you, assuring your safekeeping. Satan might woo you, discourage you, and, for a time, influence you. But he cannot have you. Christ “has identified you as his own, guaranteeing that you will be saved on the day of redemption” (Ephesians 4:30 NLT).