The Accuser -and the Defender

ZECHARAIAH CHAPTER 3

In the prophecy of Zechariah is brought to view Satan's accusing work, and the work of Christ in resisting the adversary of His people....
The people of God are here represented as a criminal on trial. Joshua, as high priest, is seeking for a blessing for his people, who are in great affliction. While he is pleading before God, Satan is standing at his right hand as his adversary. He is accusing the children of God, and making their case appear as desperate as possible. He presents before the Lord their evil doings and their defects. He shows their faults and failures, hoping they will appear of such a character in the eyes of Christ that He will render them no help in their great need. Joshua, as the representative of God's people, stands under condemnation, clothed with filthy garments. Aware of the sins of his people, he is weighed down with discouragement. Satan is pressing upon his soul a sense of guiltiness that makes him feel almost hopeless. Yet there he stands as a suppliant, with Satan arrayed against him. {COL 166.4}
The work of Satan as an accuser began in heaven. This has been his work on earth ever since man's fall, and it will be his work in a special sense as we approach nearer to the close of this world's history.... {COL 167.1}

Every manifestation of God's power for His people arouses the enmity of Satan. Every time God works in their behalf, Satan with his angels works with renewed vigor to compass their ruin. {COL 168.2}