New Revised Standard Version
Do not consider it a hardship when you send them out from you free persons, because for six years they have given you services worth the wages of hired laborers; and the LORD your God will bless you in all that you do.

Contemporary English Version
Don't complain when you have to set a slave free. After all, you got six years of service at half the cost of hiring someone to do the work.

New American Bible
Do not be reluctant when you let them go free, since the service they have given you for six years was worth twice a hired laborer’s salary; and the LORD, your God, will bless you in everything you do.

Douay-Rheims Bible
Turn not away thy eyes from them when thou makest them free: because he hath served thee six years according to the wages of a hireling: that the Lord thy God may bless thee in all the works that thou dost.

Turn not away thy eyes from them when thou makest them free: because he hath served thee six years according to the wages of a hireling: that the Lord thy God may bless thee in all the works that thou dost.

shall not

Deuteronomy 15:10 But thou shalt give to him: neither shalt thou do any thing craftily in relieving his necessities: that the Lord thy God may bless thee at all times, and in all things to which thou shalt put thy hand.

a double

Isaiah 16:14 And now the Lord hath spoken, saying: In three years, as the years of a hireling, the glory of Moab shall be taken away for all the multitude of the people, and it shall be left small and feeble, not many.

Isaiah 21:16 For thus saith the Lord to me: Within a year, according to the years of a hireling, all the glory of Cedar shall be taken away.

Luke 17:7,8 But which of you, having a servant ploughing or feeding cattle, will say to him, when he is come from the field: Immediately go. Sit down to meat. . . .