They practiced stewardship with purpose. Their own workers were paid in money – the masons and the carpenters – but the people of Sidon and Tyre were paid in kind, supplying cedar from Lebanon the same wood as had ben used in Solomon’s temple (1 Kings 5:6).
The returnees feel they must fulfil the terms of the grant. It is true of all of us when we are first saved. How badly we want to please the Lord, to put him first and to steward. Later it slipped from them, but for now they are full of zeal