Jeremiah 34:14-16

Young's Literal Translation

¹⁴ At the end of seven years ye do send forth each his brother, the Hebrew, who is sold to thee, and hath served thee six years, yea, thou hast sent him forth free from thee: and your fathers hearkened not unto Me, nor inclined their ear.

¹⁵ `And ye turn back, ye to-day, and ye do that which is right in Mine eyes, to proclaim liberty each to his neighbour, and ye make a covenant before Me in the house over which My name is called.

¹⁶ And -- ye turn back, and pollute My name, and ye cause each his man-servant and each his maid-servant, whom he had sent forth free, (at their pleasure,) to return, and ye subdue them to be to you for men-servants and for maid-servants.