Assurance

John Owen summarizes well our assurance as Christians. Christians can say this confidently...
"So the soul can say, 'He has taken away the guilt of my sin by which I come short of the glory of God. The Word of God assures me that there is now no condemnation to those that are in Christ Jesus (Rom 8:1). So being in Christ Jesus by faith, none can lay anything to my charge or condemn me (Rom 8:33, 34). And as one who is in Christ by faith, conscience no longer condemns me for sin (Heb 10:2).' This wisdom is hidden in Christ alone. But it is not enough to say that we are not guilty. We must also be perfectly righteous. The law must be fulfilled by perfect obedience if we would enter into eternal life. And this is found only in Jesus (Rom 5:10)... This must be my righteousness if I would be found in Christ, not having my own righteousness which is of the law, but the righteousness which is of God by faith (Phil 3:9)."

Amen.

John Owen, Communion with God, pg. 95-96