וּמַכֵּ֥ה בְהֵמָ֖ה יְשַׁלְּמֶ֑נָּה וּמַכֵּ֥ה אָדָ֖ם יוּמָֽת׃
And he that killeth a beast shall make it good; and he that killeth a man shall be put to death.
Read kabbalistic (mystical) interpretation of Leviticus 24:21: and classical mystical sources.