Jeremiah 34:10

10 and hearken do all the heads, and all the people who have come in to the covenant to send forth each his man-servant and each his maid-servant free, so as not to lay service on them any more, yea, they hearken, and send them away;

Jeremiah 34:10 In-Context

8 The word that hath been unto Jeremiah from Jehovah, after the making by the king Zedekiah of a covenant with all the people who [are] in Jerusalem, to proclaim to them liberty,
9 to send out each his man-servant, and each his maid-servant -- the Hebrew and the Hebrewess -- free, so as not to lay service on them, any on a Jew his brother;
10 and hearken do all the heads, and all the people who have come in to the covenant to send forth each his man-servant and each his maid-servant free, so as not to lay service on them any more, yea, they hearken, and send them away;
11 and they turn afterwards, and cause the men-servants and the maid-servants to return, whom they had sent forth free, and they subdue them for men-servants and for maid-servants.
12 And there is a word of Jehovah unto Jeremiah from Jehovah, saying:
Young's Literal Translation is in the public domain.