Mark 9:42-43

42“But whoever causes one of these little ones who trust in Me to stumble, it would be better for him to have a heavy millstone put around his neck and to be thrown into the sea!”

43“And if your hand causes you to stumble, cut it off! It is better for you to enter into life crippled than, having two hands, to go to Gehenna, into the unquenchable fire.