Pharaoh’s magicians turned rods into serpents by enchantments, likely a satanic counterfeit permitted by God, revealing the LORD’s supremacy.
Numbers 15–17 reveal God’s holiness, judgment on rebellion, and the confirmation of Aaron’s priesthood, showing that His Word must be obeyed.
Exodus 7–8 reveals God’s judgments on Egypt, Pharaoh’s hardened heart, and the LORD’s power to distinguish His people from His enemies.