וְיִשְׁתַּחֲווּ־ל֥וֹ כָל־מְלָכִ֑ים כָּל־גּוֹיִ֥ם יַֽעַבְדֽוּהוּ׃
Magpapatirapa nawa sa harap niya ang lahat ng hari; ang lahat ng bansa ay maglilingkod nawa sa kanya.
Ibn Ezra
"But I have installed My king" (va'ani nasakhti malki): [This relationship is like how Israel is God's portion, e.g.,] "Ad-nai is his inheritance" (Deuteronomy 10:9) and [conversely] "They are Your people and Your inheritance" (Deuteronomy 9:29). [The king is God's designated representative]. And similar to it [the concept of a designated king related to God] is [the phrase in (Zechariah 14:16-17)] "to bow down to the King, Ad-nai of hosts" (le-hishtachavot le-melekh Ad-nai tzeva'ot). [This title "King, Ad-nai of hosts" in Zechariah] refers to the Messiah. This is in the manner of (Psalm 72:11) "And all kings shall bow down to him" (ve-yishtachavu lo kol melakhim). For if [the phrase le-melekh ("to the King") in (Zechariah 14:16)] were referring [directly] to HaShem, the Lamed [prefix] would have a patach vowel [i.e., it would likely be לַמֶּלֶךְ - la-melekh].