Joshua 6:26; Joshua 9:23

26 Then Joshua made them take an oath at that time, saying, "Cursed before the LORD is the man who rises up and builds this city Jericho; with the loss of his firstborn he shall lay its foundation, and with the loss of his youngest son he shall set up its gates."

23 "Now therefore, you are cursed, and you shall never cease being slaves, both hewers of wood and drawers of water for the house of my God."