This is a question we receive quite often here and in the Logos Bible Software forums. As of the current version of Mac Office, Hebrew (and Arabic) right to left positioning is not supported. It is supported in the Windows version, however. I haven't tested this with the Office 2016 Preview version but that is something I intend to do later.
Shop for your Apple, Mac, iPhone and other computer products on Amazon.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.