“…that those on His left seem to think that they are worthy of going to Heaven, while those on His right seem to believe that they are unworthy!”
A scene in the Matrix movies may serve to illustrate: the Oracle told Neo “Don’t worry about the vase” and Neo then, looking around for a vase, knocks it over and breaks it – and the Oracle comments, “What’s really going to bake your noodle later on is ‘Would you still have broken it if I hadn’t said anything?’”
So if you’ve been told ahead of time about something happening, will that change what happens?
The translators’ notes in the NET Bible capture the sense succinctly.
Edit: I should add that the NET Bible translation was done in the early '90s mostly by the faculty of Dallas Theological Seminary, which is Dispensational and Complementarian. I don’t endorse the study notes (SN), but the translator’s notes (TN) are golden.