The author of Hebrews emphasizes the offer of Christ is “once for all” and is designed by God the Father “to drain the cup of a world’s sins.” Jesus comes the first time to deal with sin; the second time He comes has nothing whatever to do with sin. Instead He brings salvation “to those who await His coming.”
For some reason, I think of a dishwasher thoroughly cleaning a cup in one wash. I unloaded dishes last night. I’m not sure the reason, but the dishes were sparkling and ultra-clean. Jesus ultra-cleans the cup on His first visit to earth; at His second, He finds the cup thoroughly washed, waiting patiently ( or impatiently ) and ready for use.
and Christ was offered once for all, to drain the cup of a world’s sins; when we see him again, sin will play its part no longer, he will be bringing salvation to those who await his coming.