Exodus 23:20

הנה אנכי שלח מלאך BEHOLD, I SEND A MESSENGER [BEFORE THEE] — Here they were informed that they would once sin and that the Divine Majesty would have to tell them, (Exodus 33:3) “for ‘I’ will not go up among thee” (cf. Exodus Rabbah 32:3). אשר הכנתי means, WHICH I HAVE PREPARED in order to give unto you. This is the literal meaning of the verse. The Midrash (taking the word as connected in meaning with the term כִּוֵן “to put a thing in a line with” or “to make it correspond with” another thing) explains אל המקום אשר הכנתי to signify “to the place opposite to which I have long since established the seat of my Glory” (“the place” therefore denotes the Temple; cf. Rashi on Exodus 15:17). This is, according to the Midrash, one of the verses which implicitly state that the Temple in Heaven is situated exactly opposite (מְכֻוָּן) that on the earth (Midrash Tanchuma, Mishpatim 18)

הִנֵּ֨ה אָנֹכִ֜י שֹׁלֵ֤חַ מַלְאָךְ֙ לְפָנֶ֔יךָ לִשְׁמׇרְךָ֖ בַּדָּ֑רֶךְ וְלַהֲבִ֣יאֲךָ֔ אֶל־הַמָּק֖וֹם אֲשֶׁ֥ר הֲכִנֹֽתִי׃

Behold, I send an angel before thee, to keep thee in the way, and to bring thee to the place which I have prepared.