The man that stood, etc. The rider upon the red horse of Zechariah 1:8, the leader of the company of horsemen. Answered the question which the prophet had proposed, or answered in response to a sign from the interpreting angel.
They whom the Lord hath sent, etc. These angelic ministers had been sent to traverse the earth and to report its condition (comp. Job 1:7; Job 2:2; Hebrews 1:14), and to guide it to the carrying out of God's purposes.