Exodus 21:15-17

"And he that smiteth his father, or his mother shall surely be put to death. And he that stealeth a man, and selleth him, or if he be found in his hand, he shall surely be put to death. And he that curseth his father or his mother, shall surely be put to death."

These three verses are apparently a parenthesis in the protective rights provided to inadvertent manslayers, their apparent purpose being that of assurance that all persons who committed any of the crimes mentioned here were to be denied sanctuary anywhere if they were found to be guilty.