King James Version
Looking diligently lest any man fail of the grace of God; lest any root of bitterness springing up trouble you, and thereby many be defiled;English Standard Version
See to it that no one fails to obtain the grace of God; that no "root of bitterness" springs up and causes trouble, and by it many become defiled;New International Version
See to it that no one misses the grace of God and that no bitter root grows up to cause trouble and defile many.