As in the case of Moses Exodus 40:35, so now the glory of the Lord, the manifestation of the divine presence, which the cloud usually veiled, shone forth from it with such brilliancy, that mortal man could not bear the sight.
Related Commentaries of 1 Kings 8:11
1 Kings 8:11
11 So that the priests could not stand to minister because of the cloud: for the glory of the LORD had filled the house of the LORD.