A Golden Candlestick with "Seven Lamps" and "Seven Pipes" and "Two Olive Trees"

"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:

"And two olive trees by it, one upon the right side of the bowl, and the other upon the left side thereof." Zechariah 4:2, 3

The lesson is very clear and similar to Revelation in depicting the seven stages of the one Gospel church. We see the source of the churches sustenance. It is the two olive trees (the Old and New Testaments) on either side of the "candlestick." There are two "golden pipes" bringing the "oil" from the trees to the candlesticks.

"What be these two olive branches which through the two golden pipes empty the golden oil out of themselves?

"And he answered me and said, Knowest thou not what these be? And I said, No, my lord.

"Then said he, These are the two anointed ones (the Old and New Testaments), that stand by the Lord of the whole earth." Zechariah 4:12-14

The church's source for sustenance is the "oil" from the two "olive trees" or, as in Revelation 11:3, the two witnesses of the Old and New Testament. Just as lamps need to be cleaned and maintained, so the church has needed angels or messengers to trim their lamps to get the true light and not a carbon-filled smoking flame that gives off more smoke than light.
When I was a boy, we had kerosene lamps. The wicks needed to be cut and trimmed. As wicks burned, they became filled with carbon, and the kerosene could not flow through the carbon choked end. Then it would start burning more wick than oil, giving off smoke, soot, and very poor light. Left this way, the wicks would burn out.
Even the pure oil of these olive trees cannot burn through a carbon-choked wick. Likewise, as the light of the Lord’s Word burns through human wicks, our humanness gets in the way. Our carbon-filled personalities begin to give off smoke and soot. Instead of the pure light of God’s Word shining forth, we have soot-filled creeds and carbon-filled personalities giving forth more black smoke than light.
The Lord knew this and engaged "seven stars" or "seven messengers" to trim the lamp of God’s Word in each stage of the church, a very necessary service. The light would be the light of the Lord’s Word in each time and place. Happy are those who can receive it and walk in its light. But there are always some who say the old smoke and soot light was better.

Zechariah 4:10 refers to "seven eyes." "Those seven; they are the eyes of the Lord, which run to and fro through the whole earth." These "eyes of the Lord" represent the far-seeing wisdom or perfect wisdom of God which provides the churches with Heavenly Wisdom from above. God employs the eyes of His beloved Son in each stage of the church.
Hence, we read of, "A Lamb as it had been slain, having seven horns and seven eyes, which are the seven Spirits of God sent forth into all the earth." Revelation 5:6 We see how Zechariah 4:10 and Revelation 5:6 speak in similar language.