3 occurrences across the corpus

King James Version

Ezra 5:12

But after that our fathers had provoked the God of heaven unto wrath, he gave them into the hand of Nebuchadnezzar the king of Babylon, the Chaldean, who destroyed this house, and carried the people away into Babylon.

Daniel 2:10

The Chaldeans answered before the king, and said, There is not a man upon the earth that can shew the kings matter: therefore there is no king, lord, nor ruler, that asked such things at any magician, or astrologer, or Chaldean.

OT Pseudepigrapha

Testament of Naphtali 1:10

And Rotheus was of the family of Abraham, a Chaldean, God-fearing, free-born, and noble.