The fourth and final act of idolatry took place in the very center of the temple complex. It happened in the inner courtyard of the temple of the Lord. This was as close as a person could come to the temple building without entering it.
The 25 men worshiping the sun were likely priests, since only priests should have accessed this area. It is also possible that they were not priests and were openly breaking the rules.
These men stood physically closer to the Lord’s presence than anyone else. Yet they had turned their backs toward the sanctuary. Instead of worshiping their Creator, they worshiped something he had created (see Romans 1:25).