Now viewing scripture range from the book of Deuteronomy chapter 15:18 through chapter 15:21...
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.
19 All the firstling males that come of thy herd and of thy flock thou shalt sanctify unto the LORD thy God: thou shalt do no work with the firstling of thy bullock, nor shear the firstling of thy sheep.
20 Thou shalt eat [it] before the LORD thy God year by year in the place which the LORD shall choose, thou and thy household.
21 And if there be [any] blemish therein, [as if it be] lame, or blind, [or have] any ill blemish, thou shalt not sacrifice it unto the LORD thy God.