John 8:21
21Jesus said therefore again to them, “I am going away, and you will seek me, and you will die in your sins. Where I go, you can’t come.”
Again: the going-away word of 7:33–34 returns with a sharper edge—die in your sin. Seeking too late is distinct from coming now. Where he goes they cannot come while they remain in unbelief.
Classical Arminians find a window closing, not a pretend offer. He freely speaks while he is here; refusal now can become a seeking that never arrives. The warning is mercy in a severe key: come before the departure.
Calvin: perceiving he does no good among obstinate men, he threatens destruction—the end of all who reject the Gospel, which breathes life or death. Christ freely offers himself; they will feel the loss too late, with no more room for repentance.
The accepted time is short. He knocks; delay is not neutral. Going away is the Father’s timetable, and dying in sin is the stated end of remaining rebellion.