1 John 2 10
Those who love their fellow Christians live in the light, and don't cause others to sin.
Compare with other 3 random translations
NCV 1 John 2:10Whoever loves a brother or sister lives in the light and will not cause anyone to stumble in his faith.
EAS 1 John 2:10Anyone who loves other believers shows that he is living in the light. There is nothing that will make him turn away from God.
AMP 1 John 2:10The one who loves and unselfishly seeks the best for his [believing] brother lives in the Light, and in him there is no occasion for stumbling or offense [he does not hurt the cause of Christ or lead others to sin].