In the New Testament, James 5:4 says, “Look! The wages you failed to pay the workmen who mowed your fields are crying out against you. The cries of the harvesters have reached the ears of the Lord Almighty.” In the Old Testament God says, “Do not hold back wages of a hired man overnight” (Leviticus 19:13). In Deuteronomy 24:15 God says, “Pay wages each day before sunset, because he is poor and is counting on it. Otherwise …you will be guilty of sin.” Then there is Isaiah 58:2ff:
For day after day they seek me out; they seem eager to know my ways, as if they were a nation that does what is right and has not forsaken the commands of its God. They ask me for just decisions and seem eager for God to come near them.
‘Why have we fasted,’ they say, ‘and you have not seen it? Why have we humbled ourselves, and you have not noticed?’ “Yet on the day of your fasting, you do as you please and exploit all your workers…