The Catechism lists four “sins that cry out to heaven” and it is a startling list if you think of it in terms of our political divisions.

It is straight out of America’s culture wars: “right wingers” will read the list and see God condemning abortion and sexual immorality; “left-wingers” will read the list and see God condemning structural poverty and unfair labor practices. Here’s the list.

First, the “blood of Abel” cries out to heaven.

The Catechism explains by quoting Genesis 4:10 where the Lord said, “What have you done? The voice of your brother’s blood is crying to me from the ground!”

The sin here is murder — but St. John Paul makes the blood of Abel an icon of abortion in his encyclical Evangelium Vitae, saying that too often “threats to life arise within the relationship between parents and children, such as happens in abortion or when, in the wider context of family or kinship, euthanasia is encouraged or practiced” (No. 8).

So if you are a die-hard, uncompromising, 100 percent pro-lifer, take comfort: You are in good company. So is God.

Second, “the sin of the Sodomites” cries out to heaven.

What, exactly, is that? The Catechism cites Genesis 18:20 and 19:13 to explain, but the New Testament sums both up nicely:

“Sodom and Gomorrah and the surrounding towns gave themselves up to sexual immorality and perversion. They serve as an example of those who suffer the punishment of eternal fire” (Jude 1:7).

Certainly the “sin of the Sodomites” refers to homosexual acts (not persons; acts), but there are plenty of other sins that “close the sexual act to the gift of life,” as the Catechism puts it. Even secular critics in Time magazine are decrying the effects of pornography and, in an article not yet available online, masturbation. And Sodom and Gommorah have nothing on the disaster of the contraception-fueled sexual revolution and the growing horror of sexual trafficking.

Do sexual sins bother you a lot? They bother God a lot too.

Third, “the cry of the people oppressed in Egypt” cries out to heaven.

The Catechism cites the Exodus story here, which Pope Benedict summed up this way: “God is attentive to the cry of the poor and in return asks to be listened to: he asks for justice toward the poor, the stranger, the slave.”

Left-wing types are worried about worldwide poverty. So is God. Conservatives care too: The Economist cheers the global decline of poverty in our time and wants more of it. One thing the magazine admits, though, is that the global numbers mostly reflect the decline of poverty in China. Improvements there have come at a steep human cost, spitting up families to work in substandard conditions for low wages. In fact, the system creates and exploits new de facto widows and orphans, as captured in the documentary The Last Train Home.