Chaldea was a land lying along the Euphrates river near its mouth, south of Babylon, part of what is now southern Iraq. It was a land of the Lord's second great church, the Ancient Church, which at its height had a wealth of knoweldge through its own sacred scriptures and the correspondences of nature. But as this church declined Chaldea came to represent people who use truths for evil purposes and thus profane and falsify them. Abram was born in Chaldea because of the greatness it had represented, but had to leave because of what it had become.

1373. Verse 31 And Terah took Abram his son, and Lot, the son of Haran, his son's son, and Sarai his daughter-in-law, the wife of Abram his son; and they set out together from Ur of the Chaldeans to go into the land of Canaan. And they came as far as Haran and remained there. These words mean that people whose worship was idolatrous received instruction in the celestial and spiritual things of faith in order that from them a representative Church might come into being.