The angel says they "stand beside the Lord of the whole earth." This is a neat way of saying that they serve God—whether as priests, prophets, ministers, or apostles (Deuteronomy 10:8; 18-6-7; I Kings 17:1; 18:15; II Kings 3:14; 5:16; Jeremiah 15:19). Not only are they ministering to or serving God, but they are also called to bless His name—or to bless in His name, which is a little bit different. All things considered, they are conduits for Him, doing His work on earth. They do things in His name at His command.
Richard T. Ritenbaugh
The Two Witnesses (Part Five)
When these verses are combined with the information regarding the Two Witnesses in Revelation 11, it is clear the olive trees feeding the lampstand with oil, empowering it to give light, are the Two Witnesses feeding the entire church. If we are indeed nearing the time for God to raise up the Two Witnesses, then we should expect first one, then the other to come to the attention of the church. A spiritual unity will develop as church members voluntarily submit themselves to be fed and led by the Two Witnesses.
If we know what to look for, because we are familiar with the patterns God has revealed to us, it will put us into the position to see God regathering and reforming the church from the destructive calamity that He put it in for its good. He is actively creating whatever it takes to save His people from their sins.
John W. Ritenbaugh
God's Sovereignty and the Church's Condition (Part Two)
Other Forerunner Commentary entries containing Zechariah 4:14: