John Gills Exposition of the Bible Commentary - Zechariah 4:7
Who art thou, O great mountain ?.... This is said in reference to those who opposed the building of the temple, as Sanballat, and others; or the Persian monarchy, and Babylon the capital of it; a mountain being a symbol of a kingdom, or capital city; so Babylon is called, Jeremiah 51:25 hence the Targum paraphrases the words thus, "how art thou accounted a foolish kingdom before Zerubbabel!' and may denote the opposition made to Christ, and to the building of his church, both by Rome... read more
Matthew Henry's Complete Commentary - Zechariah 4:1-10
Here is, I. The prophet prepared to receive the discovery that was to be made to him: The angel that talked with him came and waked him, Zech. 4:1. It seems, though he was in conference with an angel, and about matters of great and public concern, yet he grew dull and fell asleep, as it should seem, while the angel was yet talking with him. Thus the disciples, when they saw Christ transfigured, were heavy with sleep, Luke 9:32. The prophet's spirit, no doubt, was willing to attend to that... read more