Hebrews 12:13-15

13and make straight paths for your feet, that that which is lame be not turned out of the way, but rather be healed.

14Follow after peace with all men, and the sanctification without which no man shall see the Lord: 15looking carefully lestthere beany man that falleth short of the grace of God; lest any root of bitterness springing up trouble you, and thereby the many be defiled;