How do we know the importance of bearing fruit in Christianity?

Bearing fruit is emphasized throughout Scripture, particularly in John 15:16, where Jesus commands that He has chosen us to bear fruit. The evidence of genuinely hearing and accepting the Word of God is the transformation of our lives, resulting in visible spiritual fruits such as repentance, faith, and a life reflecting Christ’s character. Without fruit, our faith can be deceptive, leading us to a mere outward appearance of religion rather than a true heart change. James 1:22 warns us to be doers of the Word and not merely hearers, underscoring that true Christianity involves active demonstration of the Gospel in our actions and lives. Hence, bearing fruit is an essential mark of a true follower of Christ.