NET
42 “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 tied around his neck and to be thrown into the sea.
Darby
42 And whosoever shall be a snare to one of the little ones who believe [in me], it were better for him if a millstone were hung about his neck, and he cast into the sea.
KJV
42 “And whosoever shall offend one of” [these] “little ones that believe in me, it is better for him that a millstone were hanged about his neck, and he were cast into the sea.”