Every Christian I’ve met who believes they can lose their salvation has always given a reason that involves them.
What if I commit suicide?
What if I get a divorce?
What if I stop believing?
What if I…? You fill in the blank there, but it’s all the same.

Every hypothetical scenario puts ourselves at the center of the equation. But our faithfulness to God is an old-covenant problem that is solved by the new. ~God Without Religion, pp:30-31

The reason we are even having this discussion is because so many Christians don’t know what makes the new covenant new. They read the Bible through the old covenant mindset that says “Do to be.” If this is you, let me tell you about Jesus! That old covenant is obsolete. We no longer stand on our promises to him but on his promises to us.

Bet your life on his word, not yours. If I could show you just one promise from the Lord that guaranteed your eternal security, would you quit fretting? Would you stop listening to the lies of the confused and trust instead in the truth of God’s word? Would one promise from the Faithful One be good enough for you?

Well, here’s one:
He will keep you strong to the end, so that you will be blameless on the day of our Lord Jesus Christ. God, who has called you into fellowship with his Son Jesus Christ our Lord, is faithful. (1 Cor 1:8-9)

Wow! This scripture is the atom bomb that obliterates the doubts of the insecure. If you struggle with doubt and anxiety, you should frame this verse. It will remind you that salvation is not about your faithfulness but his and God is faithful.

And don’t forget who Paul was writing to either. This scripture was addressed to Christians many today would write off as reprobates. The Corinthians weren’t what you call “good Christians.” Yet Paul looks at these clowns, sees God’s fingerprints all over them, and speaks confidently of their future. “Our hope for you is firm” (2 Cor 1:7).

Who called you into fellowship with Christ? God! Who will keep you strong to the end so that you will be blameless on that Day? God! Who is faithful? God! It’s not about you but him. Do you see it yet? If not, here’s another promise you can stand on: Now it is God who makes both us and you stand firm in Christ. He anointed us, set his seal of ownership on us, and put his Spirit in our hearts as a deposit, guaranteeing what is to come. (2 Cor 1:21-22)

The word “guarantee” means a down-payment or pledge, “i.e. part of the purchase-money or property given in advance as security for the rest.” So either God has nothing but more good stuff planned for you – guaranteed! – or he is a liar.

Are you getting this yet?
 I said one promise from the Lord should be enough and I’ve given you two. Just to settle matters once and for all, here are seven more promises from your heavenly Father that speak directly to your eternal security. Write them on your heart and take them to the bank because they are gold! If you are a Christian, the chances of you losing your salvation are exactly the same as the likelihood God will violate his promises. Since God is utterly faithful, you can be utterly secure.

 Seven golden promises about your future:

For a Christian to lose their salvation and be expelled from the kingdom…
1. God would have to forsake us, when he said he wouldn’t (Heb 13:5)
2. God would have to cast us out, when he said he wouldn’t (John 6:37)
3. God would have to condemn us, when he said he wouldn’t (Rom 8:1,34)
4. God would have to withdraw his Spirit, when he said he wouldn’t (John 14:16-17)
5. God would have to remember our sins, when he said he wouldn’t (Jer 31:34, Heb 10:17)
6. God would have to forget that we are his children, when he said he wouldn’t (Is 49:15)
7. God would have to blot our names out of the book of life, when he said he wouldn’t (Rev 3:5)