The Arians believed that Christ was all god. The Catholics believed that Christ was entirely and inseparably both god and man.
And people had fought over every possible combination of thoughts in between.
Breaking the Second Commandment?
Also, Leo thought icons were out of line with the belief that Christ was entirely god. If He was a god, He should not be shown as a man. (People were not just looking at these icons, but praying to them and even having them be godfathers to their children!)
Jewish and Islamic influence
What’s an iconoclast?
Many local people felt that it was wrong to make any images of the gods, or even of men and women who looked like the gods. Leo said all these icons should be destroyed, and he destroyed some himself to show the way. We call this iconoclasm (i-KON-oh-klaz-um).
What’s an iconodule?
The people who wanted to still have icons we call iconodules (i-KON-oh-dools). Leo’s men destroyed thousands of icons all over the Roman Empire. Many of these icons were ancient Greek or Roman statues that were great works of art. People burned these statues in lime kilns to make mortar to build medieval houses and churches.
The split between Eastern and Western Christianity
Pope Gregory II in Rome objected to this destruction of the idols, and when he died about 730 his successor Gregory III also objected. In western Europe, people kept on making statues and paintings of people. From here on the Eastern and Western churches hated each other.
When Emperor Leo died in 741, his son Constantine V succeeded him, and continued his iconoclastic policies.
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