LXX Exodus 40:29
26 And he set up the altar for the burnt offerings at the entrance of the tent, 27 and he set up the court area all around the tent and the altar; and Moses completed all the works. The Glory of the Lord 28 And the cloud enveloped the tent of testimony, and the tent was filled with the glory of the Lord. 29 And Moses was unable to enter the tent of testimony because the cloud was overshadowing it, and the tent was filled with the glory of the Lord. 30 But whenever the cloud lifted from the tent, the sons of Israel journeyed, taking along their goods. 31 And if the cloud did not go up, they did not set out until the day when the cloud lifted. 32 For the cloud was upon the tent by day, and fire was upon it by night, in the presence of all Israel during all their travels.
Matthew 17:5
2 And he was transfigured before them. His face shone like the sun, and his clothes became white as light. 3 Then Moses and Elijah also appeared before them, talking with him. 4 So Peter said to Jesus, “Lord, it is good for us to be here. If you want, I will make three shelters—one for you, one for Moses, and one for Elijah.” 5 While he was still speaking, a bright cloud overshadowed them, and a voice from the cloud said, “This is my one dear Son, in whom I take great delight. Listen to him!” 6 When the disciples heard this, they were overwhelmed with fear and threw themselves down with their faces to the ground. 7 But Jesus came and touched them. “Get up,” he said. “Do not be afraid.” 8 When they looked up, all they saw was Jesus alone.
Notes and References
"... Heavenly dwellings for the heavenly three is thus a good interpretive option, especially since in the Matthean version of the transfiguration Peter’s suggestion is not the result of somnolent confusion (as in Luke 9:32–33) or raw fear (as in Mark 9:6). The story does not imply Peter’s suggestion is categorically wrong. Rather, the heavenly voice suggests that it is ill-timed; before Jesus enters into ultimate glory, he must go the way of the cross. The cloud concerns the eschaton as well. The voice comes from a “bright cloud” which “overshadowed them” (ἰδοὺ νεφέλη φωτεινὴ ἐπεσκίασεν αὐτούς, presumably Jesus, Moses and Elijah). This is most likely an allusion to Exodus 40:35, the only verse in the LXX which contains both νεφέλη and ἐπισκιάζω ... Davies and Allison note that the description of the cloud as “bright” (φωτεινός) makes a reference to the Shekinah “unmistakable.” ..."
Huizenga, Leroy A. The New Isaac: Tradition and Intertextuality in the Gospel of Matthew (p. 232) Brill, 2009