'Releasing' in the Bible

When the king of Egypt was told that the people had fled, the minds of Pharaoh and his officials changed toward the people, and they said, "What have we done in releasing Israel from serving us?"

and this is the cause of his uncleanness his discharge. Whether his body is releasing the discharge or his body has stopped the discharge, he's unclean.

In the first year of his reign, King Evil-merodach of Babylon, showed favor to King Jehoiachin of Judah by releasing him from prison on the twenty-fifth day of the twelfth month in the thirty-seventh year of the exile of King Jehoiachin of Judah.

At every festival the governor had a custom of releasing to the crowd any prisoner whom they wanted.