Genesis 35:7

אל בית אל EL-BETH-EL — the Holy One, blessed be He, is in Beth-El; i.e. His Divine Presence has revealed itself in Bethel. Sometimes the prefix ב “in” is omitted from a word: e.g., (2 Samuel 9:4) “Behold, he is (בית) in the house of Muchir, the son of Ammiel”, which is the same as בבית in the house of Machir; (24:13) בית אביך is the same as בבית אביך ,‘in the house of thy father”. נגלו אליו האלהים GOD WAS REVEALED UNTO Him — In many passages terms denoting Divine Power and Lordship are used in the plural e. g., (39:20) “Joseph’s master (אֲדֹנֵי)” (construct plural), and (Exodus 22:14) “If its owner (בעליו) be with it”, where it does not say בַּעֲלוֹ (the singular form). Similarly, forms of אלהים denoting Judge or Authority are expressed in the plural, but you will find none other of the Divine Names in the plural.

וַיִּ֤בֶן שָׁם֙ מִזְבֵּ֔חַ וַיִּקְרָא֙ לַמָּק֔וֹם אֵ֖ל בֵּֽית־אֵ֑ל כִּ֣י שָׁ֗ם נִגְל֤וּ אֵלָיו֙ הָֽאֱלֹהִ֔ים בְּבׇרְח֖וֹ מִפְּנֵ֥י אָחִֽיו׃

And he built there an altar, and called the place El-bet-el: because there God appeared to him, when he fled from the face of his brother.