By this we know that we know Him, if we keep His commandments. Whoever says, “I know Him,” and does not keep His commandments is a liar, and the truth is not in him. 1 John 2:3-4
If one is a Christian — if he is truly sorry for His sins and looks in faith to Christ and His cross for pardon and forgiveness — he will then seek to keep His commandments and live in accord with His Word. One who claims to know Jesus Christ and trust in Him but disregards His commandments is a liar and not a true believer.
Grant that I truly repent of my sins and look to you in faith, O Jesus, that I may have forgiveness for my sins and walk in accord with Your Word. Amen.
[Scripture quoted from The Holy Bible, Modern English Version. Copyright © 2014 by Military Bible Association. Published and distributed by Charisma House.]