For in Christ Jesus neither circumcision nor uncircumcision counts for anything, but only faith working through love. - Galatians 5:6
Kevin talks about some ways that the devil tries to attack the Christians assurance, and cause them to lose their firm persuasion that God is for them and has lovingly saved them.
For who regards you as superior? What do you have that you did not receive? And if you did receive it, why do you boast as if you had not received it? - 1 Corinthians 4:7
Do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. - Philippians 4:6
Your thought life reveals the real, unrestrained you. Like most people, you may think you’re good enough to get to heaven and that God won’t send you to hell, but God has seen every one of your wicked thoughts and actions.
Christ must wholly save you or not at all. He won't be your co-redeemer. So why hope in Christ plus something you do? Why try to pin the filthy rags, of your own works, onto the spotless robe of Christ righteousness? Do you think you can improve on the finished and perfect work of Jesus Christ?...It must be Christ alone.