This is the only place that the term “seven pillars” is used in the NASB. I have no idea what they refer to. Feel free to speculate until I someday come up with the final word.
Keil and Delitzsch spend more space on the “seven” (7651) “pillars” (5982) than on anything I have tried to read before. It is amazing how many scholars and authorities have found seven items. You have everything from the seven ages of the church to the seven heavens. Most are grabbing at straws. I think the most probable is something that K&D call the “seven gifts of the Holy Ghost.” For this they refer the reader to Isaiah 11:2
(Isaiah 11:2 KJV) And the spirit of the LORD shall rest upon him, the spirit of wisdom and understanding, the spirit of counsel and might, the spirit of knowledge and of the fear of the LORD;On first count I only found six gifts but when I read their comments on Isaiah they talked about the seven “spirits” starting with the spirit of the Lord. That works. You also find it links well with the traditional Menorah used in the temple which had places for seven lamps.
So? Just a reminder that God works in our lives in a multitude of ways. He meets us at all times. He works with us as we need working.