Deuteronomy 24:15 "Give him his wage on the day it is due"

When you baby-sit or mow the lawn for someone, you appreciate getting paid for your time and effort. Even if you do not receive your payment upon completing the job, you feel confident that you will get paid at some later time. Nonetheless, you're much happier when you are paid immediately after you finish the work.

The Torah warns us to be careful when paying people who work for us. We are commanded to pay them on time and not withhold their wages.