Verse 9. Happy shall he be, that taketh and dasheth thy little ones against the stones. Fierce was the heart of the Jew who had seen his beloved city the scene of such terrific butchery. His heart pronounced like sentence upon Babylon. She should be scourged with her own whip of wire. The desire for righteous retribution is rather the spirit of the law than of the gospel; and yet in moments of righteous wrath the old fire will burn; and while justice survives in the human breast it will not lack for fuel among the various tyrannies which still survive. We shall be wise to view this passage as a prophecy. History informs us that it was literally fulfilled: the Babylonian people in their terror agreed to destroy their own offspring, and men thought themselves happy when they had put their own wives and children to the sword. Horrible as was the whole transaction, it is a thing to be glad of if we take a broad view of the world's welfare; for Babylon, the gigantic robber, had for many a year slaughtered nations without mercy, and her fall was the rising of many people to a freer and safer state. The murder of innocent infants can never be sufficiently deplored, but it was an incident of ancient warfare which the Babylonians had not omitted in their massacres, and, therefore, they were not spared it themselves. The revenges of providence may be slow, but they are ever sure; neither can they be received with regret by those who see God's righteous hand in them. It is a wretched thing that a nation should need an executioner; but yet if men will commit murders tears are more fitly shed over their victims than over the assassins themselves. A feeling of universal love is admirable, but it must not be divorced from a keen sense of justice.
The captives in Babylon did not make music, but they poured forth their righteous maledictions, and these were far more in harmony with their surroundings than songs and laughter could have been. Those who mock the Lord's people will receive more than they desire, to their own confusion: they shall have little enough to make mirth for them, and more than enough to fill them with misery. The execrations of good men are terrible things, for they are not lightly uttered, and they are heard in heaven. "The curse causeless shall not come;" but is there not a cause? Shall despots crush virtue beneath their iron heel and never be punished? Time will show.