1 John 3:10

Amplified Bible, Classic Edition

¹⁰ By this it is made clear who take their nature from God and are His children and who take their nature from the devil and are his children: no one who does not practice righteousness [who does not conform to God’s will in purpose, thought, and action] is of God; neither is anyone who does not love his brother (his fellow ^[a]believer in Christ).