Reply To: GREP find and replace for language direction

Now I haven’t tried this in InDesign, but thought I would see if it would help, you might be able to do a search for Hebrew Unicode characters, it looks like the range is 0590–05FF, so you could try doing a search for [\x{0590}-\x{05FF}]+ to find only the Hebrew characters with the punctuation at the end in a separate group, then switching the groups in your change so the punctuation comes before the Hebrew Characters.

Find: ([\x{0590}-\x{05FF}]+)([,.?!])
Change To: $2$1