New Defender's Study Bible Notes
4:2 Esar-haddon King of Assur. Esar-haddon was the son of Sennacherib, whose armies had been destroyed by God’s angel, at the siege of Jerusalem (II Kings 19:35-37). The Assyrians made no further attempt to take Jerusalem, but Esar-haddon did carry out the work of replacing the population of the northern kingdom with people of other nations.
4:3 nothing to do with us. Just as in the rebuilding of the temple, Christians and Christian organizations are often tempted to compromise with the world system in doctrine or practice with the supposed motive of getting the work more acceptable to worldly people, but this is the route to ultimate apostasy or defeat. The Lord’s work should be done by the Lord’s people in the Lord’s way. Note II Peter 3:17.