The glory of the Lord did not leave the temple all at once. It moved slowly, step by step, almost as if it was unwilling to depart (Ezekiel 10:4).
First, the glory of the Lord moved from above the cherubim in the Most Holy Place. Then it went to the entrance of the temple and stopped there for a time. After that, it rose above the cherubim again (Ezekiel 10:18) and moved to the east gate of the courtyard, where it paused once more (10:19). Eventually, the glory of the Lord left the city completely (11:23).