The victors in Philadelphia ( not the 76ers) will become pillars in the house of God (Revelation 3:12). Structural pillars are replaced by people-pillars because the temple is replaced by a people-house.
The structural and decorative pillars of Solomon’s temple were cut to pieces and shipped off to Babylon. Not so the people-pillars: They “will not go out from it anymore.” Architectural temples go up, and come down. The people-house is final.
Jesus can guarantee this because He’s the man with the keys (3:7). When He closes the temple against attackers, they can’t get it open. Instead of removing the people-pillars, the false Jews who attack the church will bow at their feet, the feet of faithful saints that are the feet of Jesus.