'Lettest' in the Bible

And when thou lettest him go free from thee, thou shalt not let him go empty:

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 Jehovah thy God will bless thee in all that thou doest.

That against God thou turnest thy spirit, And lettest words go out of thy mouth?

Now lettest thou thy servant depart, Lord, According to thy word, in peace;