I am the man that has seen affliction by the rod of his wrath.
so Jarchi; but God's chastisements of his own people are in love, though thought sometimes by them to be in wrath and hot displeasure; so the prophet imagined, but it was not so; perhaps some regard may be had to the instrument of Jerusalem's destruction, the king of Babylon, called the rod of the Lord's anger, Isaiah 10:5; all this was true of Christ, as the surety of his people, and as sustaining their persons, and standing in their room.