It can be stated clearly that the events described in verse 10 fulfilled the word of Yahweh. Alternate translation: "What happened to Zechariah was according to the word of Yahweh" or "What happened to Zechariah fulfilled the word of Yahweh" (See: [[rc://en/ta/man/translate/figs-explicit]])
Sitting on the throne represents being the king. Alternate translation: "Your descendants will be the kings of Israel for four generations" (See: [[rc://en/ta/man/translate/figs-metonymy]])