I have become a collector of commentaries ever since my seminary days in the 1990s. As such, I am only going to recommend the best overall commentary for each book of the Bible on this site. I struggle to recommend the best commentary for a preacher/teacher to have on Philippians, but Hughes once again proves to provide a solid, evangelical interpretation while offering thoughts for illustration as well as application. It is as good a starting place as any for a resource whenever teaching through Philippians. (I think Gerald Hawthorne's contribution in the Word Biblical Commentary series would be a good compliment resource to glean more in-depth theological content).