That's the definition of "limited atonement."
And "those wo come to Him" are those whom the Father has given Christ to bring home, designated "not for anything good or evil that they may have done or will do," but according to His election alone.
Christ's sacrifice could have atoned for the sins of all the world, but in fact, His sacrifice atoned for the sins of His elect.
The sins of the reprobate remain, always and forever, unatoned for, unforgiven and stand in conviction of all those who were not numbered among His family by God from before the foundation of the world.
God elects; Christ redeems; the Holy Spirit sanctifies; man glorifies and rejoices.
If you accept that as the definition of limited atonement, then why are you arguing with me? :>)
Sufficient/efficient is the original point I made.
Not that I could be accused on a Friday of instructing anyone to go back and check my original comments.
By the definition of God, the sacrifice of God must be sufficient to cover every sin.....every anything.
Your scholarship on Arminius is unconvincing propaganda from an era when people were killed over these things.