NET

18 You should not consider it difficult to let him go free, for he will have served you for six years, twice the time of a hired worker; the Lord your God will bless you in everything you do.

Darby

18 Let it not seem hard unto thee, when thou sendest him away free from thee; for double the worth of a hired servant hath he been to thee, [in] serving thee six years; and Jehovah thy God will bless thee in all that thou doest.

KJV

18 It shall not seem hard unto thee, when thou sendest him away free from thee; for he hath been worth a double hired servant [to thee], in serving thee six years: and the LORD thy God shall bless thee in all that thou doest.