NET
6 “But if anyone causes one of these little ones who believe in me to sin, it would be better for him to have a huge millstone hung around his neck and to be drowned in the open sea.
Darby
6 But whosoever shall offend one of these little ones who believe in me, it were profitable for him that a great millstone had been hanged upon his neck and he be sunk in the depths of the sea.
KJV
6 “But whoso shall offend one of these little ones which believe in me, it were better for him that a millstone were hanged about his neck, and” [that] “he were drowned in the depth of the sea.”