A Dead Man Doesn't Fight
You sin. You fall. You end up somewhere you swore you'd never be again. And the enemy shows up right on time with his favorite line — maybe you were never saved to begin with.
Don't believe it.
When God saves a man, he plants his seed in him — 1 John 3:9. Not a weak seed. Not a corruptible one. An incorruptible seed that remaineth. It doesn't leave when you're having a bad week. It stays. And it pulls.
That pull is not guilt — it's God. It's what makes the far country feel like exile even when you're standing in the middle of it.
A child of the devil doesn't feel that. He sleeps just fine in the pigpen. He unpacks his bags and calls it home. The prodigal son couldn't do that. He came to himself — because something in him knew he didn't belong there. That's not willpower. That's the seed.
If sin still bothers you — if you can't make peace with it, keep finding yourself on your knees over it — that's not a sign your salvation is weak. That's a sign it's real.
The war is the proof.
Feed the right side of it. Set your affection on things above, not on things on the earth — Colossians 3:2. Starve the flesh. Walk in the Spirit. Not to earn something — but because what God planted in you is incorruptible, and it will produce what he put it there to produce.
Let it.