Chapter 4
V.1-3 Telling that the kingdom of His, in the millennium will be all light and perfect order.
V.6-10 Describe the conditions at the time of writing when the remnant, under Zerubbabel had returned to Jerusalem. Zechariah encourages him, that he would be able to complete the job of rebuilding the house of God.
V.11-14 Christ in the future will be both King and Priest, His power shall be the Holy Spirit (the oil). It applies both to the remnant then returning like a shadow of the real fulfillment in the day when the Lord appears (Rev. 11:44These are the two olive trees, and the two candlesticks standing before the God of the earth. (Revelation 11:4)).
Chapter 5
V.1-4 Another vision a high-flying roll (about 30 x 15 ft) this pictures judgment which will search into every corner and punish stealing and swearing falsely.