Multi-Translation Layout:
15 looking carefully lest anyone fall short of the grace of God; lest any root of bitterness springing up cause trouble, and by this many become defiled;
15 See to it that no one fails to obtain the grace of God; that no root of bitterness springs up and causes trouble, and through it many become defiled.
15 See to it that no one falls short of the grace of God and that no bitter root grows up to cause trouble and defile many.