Jamieson, Fausset and Brown on Ezekiel 16:29

29. multiplied ... fornication in ... Canaan unto Chaldea--Thou hast multiplied thy idolatries "in Canaan" by sending "unto Chaldea" to borrow from thence the Chaldean rites, to add to the abominations already practised "in Canaan," before the carrying away of Jehoiachin to Chaldea. The name "Canaan" is used to imply that they had made Judea as much the scene of abominations as it was in the days of the corrupt Canaanites. The land had become utterly Canaanitish (Eze 23:14, &c.).