Divine Chesed: The Fire and Cloud as Symbols of God's Constancy
(לג) וַיָּ֣קֶם אֶת־הֶחָצֵ֗ר סָבִיב֙ לַמִּשְׁכָּ֣ן וְלַמִּזְבֵּ֔חַ וַיִּתֵּ֕ן אֶת־מָסַ֖ךְ שַׁ֣עַר הֶחָצֵ֑ר וַיְכַ֥ל מֹשֶׁ֖ה אֶת־הַמְּלָאכָֽה׃ {פ}
(לד) וַיְכַ֥ס הֶעָנָ֖ן אֶת־אֹ֣הֶל מוֹעֵ֑ד וּכְב֣וֹד יְהֹוָ֔ה מָלֵ֖א אֶת־הַמִּשְׁכָּֽן׃ (לה) וְלֹא־יָכֹ֣ל מֹשֶׁ֗ה לָבוֹא֙ אֶל־אֹ֣הֶל מוֹעֵ֔ד כִּֽי־שָׁכַ֥ן עָלָ֖יו הֶעָנָ֑ן וּכְב֣וֹד יְהֹוָ֔ה מָלֵ֖א אֶת־הַמִּשְׁכָּֽן׃ (לו) וּבְהֵעָל֤וֹת הֶֽעָנָן֙ מֵעַ֣ל הַמִּשְׁכָּ֔ן יִסְע֖וּ בְּנֵ֣י יִשְׂרָאֵ֑ל בְּכֹ֖ל מַסְעֵיהֶֽם׃ (לז) וְאִם־לֹ֥א יֵעָלֶ֖ה הֶעָנָ֑ן וְלֹ֣א יִסְע֔וּ עַד־י֖וֹם הֵעָלֹתֽוֹ׃ (לח) כִּי֩ עֲנַ֨ן יְהֹוָ֤ה עַֽל־הַמִּשְׁכָּן֙ יוֹמָ֔ם וְאֵ֕שׁ תִּהְיֶ֥ה לַ֖יְלָה בּ֑וֹ לְעֵינֵ֥י כׇל־בֵּֽית־יִשְׂרָאֵ֖ל בְּכׇל־מַסְעֵיהֶֽם׃

(33) And he set up the enclosure around the Tabernacle and the altar, and put up the screen for the gate of the enclosure. When Moses had finished the work, (34) the cloud covered the Tent of Meeting, and the Presence of יהוה filled the Tabernacle. (35) Moses could not enter the Tent of Meeting, because the cloud had settled upon it and the Presence of יהוה filled the Tabernacle. (36) When the cloud lifted from the Tabernacle, the Israelites would set out, on their various journeys; (37) but if the cloud did not lift, they would not set out until such time as it did lift. (38) For over the Tabernacle a cloud of יהוה rested by day, and fire would appear in it*in it I.e., in the cloud. by night, in the view of all the house of Israel throughout their journeys.

(כא) וַֽיהֹוָ֡ה הֹלֵךְ֩ לִפְנֵיהֶ֨ם יוֹמָ֜ם בְּעַמּ֤וּד עָנָן֙ לַנְחֹתָ֣ם הַדֶּ֔רֶךְ וְלַ֛יְלָה בְּעַמּ֥וּד אֵ֖שׁ לְהָאִ֣יר לָהֶ֑ם לָלֶ֖כֶת יוֹמָ֥ם וָלָֽיְלָה׃ (כב) לֹֽא־יָמִ֞ישׁ עַמּ֤וּד הֶֽעָנָן֙ יוֹמָ֔ם וְעַמּ֥וּד הָאֵ֖שׁ לָ֑יְלָה לִפְנֵ֖י הָעָֽם׃ {פ}
(21) יהוה went before them in a pillar of cloud by day, to guide them along the way, and in a pillar of fire by night, to give them light, that they might travel day and night. (22) The pillar of cloud by day and the pillar of fire by night did not depart from before the people.

In the Presence of God

Dr.Michael Carasik

Do not imagine that YHWH stopped at sunset to change clouds. There was a single cloud 24/7,[9] and (besides its utilitarian purpose during the escape) its purpose was to protect Israel from the sight of YHWH’s kavod. At night, when it grew darker, the intense brightness concealed by the cloud during the day became visible enough to appear as fire........

The kavod depicted there is very much physical. The cloud is what protects human beings from potentially fatal exposure to the intense energy of YHWH’s Presence.

https://www.thetorah.com/article/in-the-presence-of-god

(ד) וָאֵ֡רֶא וְהִנֵּה֩ ר֨וּחַ סְעָרָ֜ה בָּאָ֣ה מִן־הַצָּפ֗וֹן עָנָ֤ן גָּדוֹל֙ וְאֵ֣שׁ מִתְלַקַּ֔חַת וְנֹ֥גַֽהּ ל֖וֹ סָבִ֑יב וּמִ֨תּוֹכָ֔הּ כְּעֵ֥ין הַחַשְׁמַ֖ל מִתּ֥וֹךְ הָאֵֽשׁ׃
(4) I looked, and lo, a stormy wind came sweeping out of the north—a huge cloud and flashing fire, surrounded by a radiance; and in the center of it, in the center of the fire, a gleam as of amber.
(יט) וַיִּסַּ֞ע מַלְאַ֣ךְ הָאֱלֹהִ֗ים הַהֹלֵךְ֙ לִפְנֵי֙ מַחֲנֵ֣ה יִשְׂרָאֵ֔ל וַיֵּ֖לֶךְ מֵאַחֲרֵיהֶ֑ם וַיִּסַּ֞ע עַמּ֤וּד הֶֽעָנָן֙ מִפְּנֵיהֶ֔ם וַיַּֽעֲמֹ֖ד מֵאַחֲרֵיהֶֽם׃ (כ) וַיָּבֹ֞א בֵּ֣ין ׀ מַחֲנֵ֣ה מִצְרַ֗יִם וּבֵין֙ מַחֲנֵ֣ה יִשְׂרָאֵ֔ל וַיְהִ֤י הֶֽעָנָן֙ וְהַחֹ֔שֶׁךְ וַיָּ֖אֶר אֶת־הַלָּ֑יְלָה וְלֹא־קָרַ֥ב זֶ֛ה אֶל־זֶ֖ה כׇּל־הַלָּֽיְלָה׃
(19) The messenger of God, who had been going ahead of the Israelite army, now moved and followed behind them; and the pillar of cloud shifted from in front of them and took up a place behind them, (20) and it came between the army of the Egyptians and the army of Israel. Thus there was the cloud with the darkness, and it cast a spell upon*and it cast a spell upon From root ’-r-r, “cast a spell” or “curse.” Others “and it lit up.” the night, so that the one could not come near the other all through the night.
(כד) וַֽיְהִי֙ בְּאַשְׁמֹ֣רֶת הַבֹּ֔קֶר וַיַּשְׁקֵ֤ף יְהֹוָה֙ אֶל־מַחֲנֵ֣ה מִצְרַ֔יִם בְּעַמּ֥וּד אֵ֖שׁ וְעָנָ֑ן וַיָּ֕הׇם אֵ֖ת מַחֲנֵ֥ה מִצְרָֽיִם׃
(24) At the morning watch, יהוה looked down upon the Egyptian army from a pillar of fire and cloud, and threw the Egyptian army into panic.
(טז) וַיְהִי֩ בַיּ֨וֹם הַשְּׁלִישִׁ֜י בִּֽהְיֹ֣ת הַבֹּ֗קֶר וַיְהִי֩ קֹלֹ֨ת וּבְרָקִ֜ים וְעָנָ֤ן כָּבֵד֙ עַל־הָהָ֔ר וְקֹ֥ל שֹׁפָ֖ר חָזָ֣ק מְאֹ֑ד וַיֶּחֱרַ֥ד כׇּל־הָעָ֖ם אֲשֶׁ֥ר בַּֽמַּחֲנֶֽה׃
(16) On the third day, as morning dawned, there was thunder, and lightning, and a dense cloud upon the mountain, and a very loud blast of the horn; and all the people who were in the camp trembled.

....if we understand that there was one pillar—fire surrounded by cloud—then its form is understood from the point of view of someone perceiving the pillar. During the day, we see a pillar of cloud, and during the night, the light of the fire shines through.

Marc Wolf, Between the Fire and the Cloud

https://www.jtsa.edu/torah/between-the-fire-and-the-cloud/

Rabbi Mordechai Finley:

The precision of the planks, the curtains, the rods, the menorah, the altars, the tables, the ark, the keruvim are like notes of a song, the words of holy speech. The sung and spoken words of the Mishkan that we build together are not finished for others to gaze upon and enter. The notes and words must be sung and said continuously, like a Ner Tamid, the eternal flame. Our hearts create the sanctuary into which the cloud, the fire and the voice are housed, into which holy song and holy words are sounded. Every time we assemble, to sing, to listen, to learn, we are reassembling the Miskhan, from our wisdom, discernment and knowledge, from our generosity of heart, from our weaving of every fine craft that the human spirit can shape.

https://www.rabbifinley.com/post/the-cloud-the-fire-and-the-voice-torah-portion-pekudei