Rashi on Genesis 3:24/רש"י על בראשית ג׳:כ״ד

1מקדם לגן עדן AT THE EAST OF THE GARDEN OF EDEN — Not in the eastern part of the Garden but eastward of the garden of Eden and outside the garden.

2את הכרבים THE CHERUBIM — Angels of destruction (Exodus Rabbah 9:11).

3החרב המתהפכת THE SWORD TURNING ITSELF — It was a revolving sword and consequently had a להט, a flashing flame for the purpose of frightening him so that he should not enter again into the garden. The Targum of להט, however, is שנן, like (Sanhedrin 82a) שלף שננא he drew his blade; old French lame. There are Agadic Midrashim, but I come only to explain it according to its plain sense.