'Upper' in the Bible

Woe to him who is building his house by unrighteousness, And his upper chambers by injustice, On his neighbour he layeth service for nought, And his wage he doth not give to him.

Who is saying, 'I build for myself a large house, And airy upper chambers,' And he hath cut out for himself its windows, Ceiled with cedar, and painted with vermilion.