The translation reads,
Due to the lack of medical equipment and the lack of a medical staff, it was decided to bomb the Baptist Hospital in Gaza and give them euthanasia death
Was this message ever put out?
No, this is not a real post.
The IDF Arabic official Spokesperson is Avichay Adraee, who can be found on Facebook at https://www.facebook.com/IDFarabicAvichayAdraee. The "[email protected]" email address that has been shared as belonging to the Arabic IDF page comes from that page, and a Google search finds no other results for that email address.
No news reports of the IDF making statements in Arabic points to such a Facebook page - see for instance this Times of Israel article from October 8th, 2023, pointing to Avichay Adraee as the Arabic Spokesperson and not an IDF Arabic page.
The profile image used in the screenshot is the symbol of the IDF Spokesperson's Unit, but official IDF accounts in various languages - such as their Hebrew Facebook account, their English Facebook account, and their Farsi Twitter account - all use the main IDF logo as their profile image. The account / page title in the screenshot says "IDF in Arabic" (at least in the Hebrew, I can't read the Arabic), not "IDF Spokesperson's Unit in Arabic". If such an IDF Arabic Facebook account did exist, it would also use the primary IDF symbol as its profile image.
This is clearly a mock/fake post, as:
Just to be clear - I don't buy the Israeli military's claims; but that's beside the point.