Hebrews 12:14-15

WNT(i) 14 but may rather be restored. Persistently strive for peace with all men, and for that growth in holiness apart from which no one will see the Lord. 15 Be carefully on your guard lest there be any one who falls back from the grace of God; lest any root bearing bitter fruit spring up and cause trouble among you, and through it the whole brotherhood be defiled;