Exodus 4:4-6

Lexham English Bible

⁴ And Yahweh said to Moses, “Reach out your hand and grasp it by its tail”—” (And he reached out his hand and grabbed it, and it became a staff in his palm.)— ⁵ “so that they may believe that Yahweh, the God of their ancestors,^[a] appeared to you, the God of Abraham, the God of Isaac, and the God of Jacob.”

⁶ And Yahweh said to him again, “Put your hand into the fold of your garment.” And he put his hand into the fold of his garment, and he took it out, and, to his surprise,^[b] his hand was afflicted with a skin disease, like snow.