James 2:10

Now whoever has observed the whole law, yet who offends in one matter, has become guilty of all

Other versions

For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.

For whoever keeps the whole law but fails in one point has become accountable for all of it.

For whoever keeps the whole law and yet stumbles at just one point is guilty of breaking all of it.