Deuteronomy 15:18

It shall not qashah (rough / hard) hard to you, when you shalach (send) him go chapashay (free) from you; for to the mashanah (double) of the shakar (hire) of a shakayar (hireling) has he ibad (servant) you shash (six) shanayam (years): and Yahawah () your Alahayam () will barak (blessed) you in all that you ishah (make).