The Heb. Kasdim is generaliy rendered 'Chaldees' (Ge 11:28), and in Jer 50:10; 51:24; 24:5; 25:12, and often, is used for 'Babylonian.' The word is derived from the Babylonian name Kald
And Haran died before his father Terah in the land of his nativity, in Ur of the Chaldeans.
Thus says the LORD, the God of Israel; Like these good figs, so will I acknowledge them that are carried away captive of Judah, whom I have sent out of this place into the land of the Chaldeans for their good.
And it shall come to pass, when seventy years are accomplished, that I will punish the king of Babylon, and that nation, says the LORD, for their iniquity, and the land of the Chaldeans, and will make it perpetual desolations.
And Chaldea shall be a plunder: all that plunder her shall be satisfied, says the LORD.
And I will render unto Babylon and to all the inhabitants of Chaldea all their evil that they have done in Zion in your sight, says the LORD.
Young men in whom was no blemish, but handsome, and skilful in all wisdom, and gifted in knowledge, and understanding science, and such as had ability in them to stand in the king's palace, and whom they might teach the learning and the language of the Chaldeans.