Matthew Henry's Concise Commentary on the Bible - Exodus 40:34-38
34-38 The cloud covered the tabernacle even in the clearest day; it was not a cloud which the sun scatters. This cloud was a token of God's presence to be seen day and night, by all Israel, that they might never again question, Is the Lord among us, or is he not? It guided the camp of Israel through the wilderness. While the cloud rested on the tabernacle, they rested; when it removed, they followed it. The glory of the Lord filled the tabernacle. In light and fire the Shechinah made itself... read more
George Haydock's Catholic Bible Commentary - Exodus 40:36
A fire. The same cloud overshadowed the camp by day, and enlightened it by night. (Chaldean; Chap. xiii. 22.) read more