A.T. Robertson Commentary John 12:23

"And Jesus answereth them, saying, The hour is come, that the Son of man should be glorified." — John 12:23 (ASV)

The hour is come (εληλυθεν η ωρα). The predestined hour, seen from the start (2:4), mentioned by John (7:30; 8:20) as not yet come and later as known by Jesus as come (13:1), twice again used by Jesus as already come (in the prayer of Jesus, 17:1; Mr 14:41, just before the betrayal in the Garden). The request from the Greeks for this interview stirs the heart of Jesus to its depths.

That the Son of man should be glorified (ινα δοξασθη ο υιος του ανθρωπου). Purpose clause with ινα (not in the sense of οτε, when) and the first aorist passive subjunctive of δοξαζω, same sense as in 12:16, 13:31. The Cross must come before Greeks can really come to Jesus with understanding. But this request shows that interest in Jesus now extends beyond the Jewish circles.