'Upper chambers' in the Bible

“Woe (judgment is coming) to him who builds his house by [acts of] unrighteousnessAnd his upper chambers by injustice,Who uses his neighbor’s service without payAnd does not give him wages [for his work],

that saith, I will build me a wide house, and spacious upper chambers; and he cutteth out for himself windows; and it is wainscoted with cedar, and painted with vermilion.