Do not regard it as a hardship to set your servant free, because his six years of service were worth twice the wages of a hired hand. And the LORD your God will bless you in all you do.
Jewish Publication Society of America Version (JPS1917) - Deuteronomy 15:18 >It shall not seem hard unto thee, when thou lettest him go free from thee; for to the double of the hire of a hireling hath he served thee six years; and the LORD thy God will bless thee in all that thou doest.