zechariah 4:2 And said unto me, What seest thou? And I said, I have looked, and behold a candlestick all of gold, with a bowl upon the top of it, and his seven lamps thereon, and seven pipes to the seven lamps, which are upon the top thereof: - Free Bible Online

      2. candlestick--symbolizing the Jewish theocracy; and ultimately, the Church of which the Jewish portion is to be the head: the light-bearer (so the original is of "lights," Mt 5:14, 16; Php 2:15) to the world.
      all . . . gold--all pure in doctrine and practice, precious and indestructible; such is the true ideal of the Church; such she shall be (Ps 45:13).
      bowl upon the top--In the candlestick of the tabernacle the plural is used, bowls (Ex 25:31). The Hebrew implies that it was the fountain of supply of oil to the lamps. Christ at the head ("on the top") of the Church is the true fountain, of whose fulness of the Spirit all we receive grace (Joh 1:16).
      his seven lamps--united in one stem; so in Ex 25:32. But in Re 1:12 the seven candlesticks are separate. The Gentile churches will not realize their unity till the Jewish Church as the stem unites all the lamps in one candlestick (Ro 11:16-24). The "seven lamps," in Re 4:5, are the "seven Spirits of God."
      seven pipes--feeding tubes, seven apiece from the "bowl" to each lamp (see Margin) [MAURER and CALVIN]; literally, "seven and seven": forty-nine in all. The greater the number of oil-feeding pipes, the brighter the light of the lamps. The explanation in Zec 4:6 is, that man's power by itself can neither retard nor advance God's work, that the real motive-power is God's Spirit. The seven times seven imply the manifold modes by which the Spirit's grace is imparted to the Church in her manifold work of enlightening the world.

JFB.