וַיִּתְפֹּ֛שׂ אֶת־אֲגַ֥ג מֶֽלֶךְ־עֲמָלֵ֖ק חָ֑י וְאֶת־כָּל־הָעָ֖ם הֶחֱרִ֥ים לְפִי־חָֽרֶב׃
And he took Agag the king of the Amalekites alive, and utterly destroyed all the people with the edge of the sword.
Read kabbalistic (mystical) interpretation of I Samuel 15:8: and classical mystical sources.