Hebrews 12:15-17

Watch over each other to make sure that no one misses the revelation of God’s grace. And make sure no one lives with a root of bitterness sprouting within them which will only cause trouble and poison the hearts of many. Be careful that no one among you lives in immorality, becoming careless about God’s blessings, like Esau who traded away his rights as the firstborn for a simple meal. And we know that later on when he wanted to inherit his father’s blessing, he was turned away, even though he begged for it with bitter tears, for it was too late then to repent.