How do we know we are truly in Christ?

The Apostle John provides a clear criterion in 1 John 2:3-5 for knowing if we know Him: 'And by this we know that we have come to know Him, if we keep His commandments.' This means that genuine knowledge of Christ is not merely intellectual agreement, but it transforms our behavior. A true believer exhibits obedience to God's Word, which reflects a deep love for Him. This love is perfected in those who keep His commandments, highlighting that true faith is evidenced by active obedience and is characterized by love toward our brothers and sisters in Christ, as Jesus instructed us to love one another as He loved us.