Zechariah 6:13

6:13 Indeed, he will build the temple of the Lord, and he will be clothed in splendor, sitting as king on his throne. Moreover, there will be a priest ¹  with him on his throne and they will see eye to eye on everything.

Zechariah 14:4

14:4 On that day his feet will stand on the Mount of Olives which lies to the east of Jerusalem, and the Mount of Olives will be split in half from east to west, leaving a great valley. Half the mountain will move northward and the other half southward. ² 

[6:13]  ¹ sn The priest here in the immediate context is Joshua but the fuller and more distant allusion is to the Messiah, a ruling priest. The notion of the ruler as a priest-king was already apparent in David and his successors (Pss 2:2, 6-8; 110:2, 4), and it finds mature expression in David’s greater Son, Jesus Christ, who will combine both offices in his kingship (Heb 5:1-10; 7:1-25).

[14:4]  ² sn This seismic activity provides a means of escape from Jerusalem so that the Messiah (the Lord), whose feet will stand on the Mount of Olives, may destroy the wicked nations in the Kidron Valley (the v. of Jehoshaphat, or of “judgment of the Lord”) without harming the inhabitants of the city.