I’ve struggled with doubts about my salvation for many years. Doubts are normal, and the devil sometimes uses doubts to turn Christians against God and make them ineffective. But just because I—a very broken human being—have doubts, that doesn’t mean the gospel is a lie.
In short, this is the gospel: God loves you (John 3:16). He doesn’t love you because you are a good person or because you do good things (Romans 3:6-9). You are desperately broken, and there is not even an ounce of good in you (Romans 3:10-18). God loves you because of His character, and He demonstrated His love for you by sending His only Son to die in your place (Ephesians 2:4-7). Instead of you paying for your sins, Jesus paid for your sins when He died on the cross for you, and He conquered death when He rose from the dead (1 Corinthians 15:3-4). You can’t earn salvation, so you must accept it as a gift from God (Ephesians 2:8-9). All you can do is trust Him to save you from your destiny—hell (Romans 6:23). He is ready to save you if you ask Him (2 Peter 3:9).