What sense of justice did God weave into the earth itself when He made it? I find four times in the Bible when an inanimate thing “cries out” in protest:
In Genesis 4:10, Abel’s blood cries out to God from the ground where Cain has spilled it.
In Genesis 18:20, God had heard an outcry against Sodom and Gomorrah about their grievous sin.
In Habakkuk 2:11, the stones and rafters of the Babylonians’ homes would cry out because of their excessive cruelty against the nations that they destroyed.
In all of these, there is a moral outrage that demands—and receives—divine retribution on oppressors.
Luke 19:40 is different. If the cheering children are prohibited from praising Jesus, the stones would have to cry out and do it.
The expression of God’s glory is as much of a moral mandate as is the justice due to oppressed people. Elsewhere we read of the heavens declaring God’s glory and the trees of the field applauding. But His ultimate praise is from the mouths of humans He’s created. Is that why at times I just have to burst out in song?