"Do not take advantage of a hired worker who is poor and needy, whether that worker is a fellow Israelite or a foreigner residing in one of your towns." (Deuteronomy 24:14)
Deuteronomy 24 is a catalogue of protections for the vulnerable. A newly married man must not go to war or be charged with any duty for one year; he is free to stay at home and bring happiness to the wife he has married. No one may take a pair of millstones as security for a debt, because that would be taking a person's livelihood. Kidnappers must be put to death. Do not charge interest to fellow Israelites. When you make a loan, do not go into the house to collect the pledge; wait outside. Return a poor man's cloak by sunset so he can sleep in it, and this will be righteousness to you. Do not take advantage of a hired worker who is poor and needy, whether that worker is a fellow Israelite or a foreigner residing in one of your towns. Pay them each day before sunset, because they are poor and are counting on it.
Do not deprive the foreigner or the fatherless of justice. Do not take the cloak of the widow as a pledge. When you harvest, do not go over your field a second time; leave it for the foreigner, the fatherless, and the widow. The Catechism draws from this the preferential option for the poor: the covenant community's treatment of its most vulnerable members is a measure of its fidelity to the covenant with the God who is himself the defender of the poor (CCC 2448).
Brothers and sisters, pay your workers each day before sunset, because they are poor and are counting on it. The withholding of wages owed to the poor is a cry that reaches heaven. The covenant requires prompt payment, honest dealing, and the protection of those who depend on others for their survival. Your faithfulness to these obligations is counted as righteousness before God.
Lord God, you commanded your people to leave the gleanings of harvest for the foreigner, the fatherless, and the widow. Give us open hands and just dealings with every worker and neighbour who depends on our fairness. Let righteousness be the measure of our economic life. Through Christ our Lord. Amen.