John Gill Commentary Zechariah 2:3

"And, behold, the angel that talked with me went forth, and another angel went out to meet him," — Zechariah 2:3 (ASV)

And, behold, the angel that talked with me went forth
See (Zechariah 1:9Zechariah 1:13Zechariah 1:14Zechariah 1:19) and he "went forth" from the place where the prophet was, with whom he had been conversing: and another angel went out to meet him :
the same that was seen among the myrtle trees, (Zechariah 1:8) and here, with a measuring line in his hand, (Zechariah 2:1) .