In the biblical books Exodus, Leviticus and Numbers, Nadab (Hebrew: נָדָב, Modern: Nadav, Tiberian: Nāḏāḇ, "generous") and Abihu (Hebrew: אֲבִיהוּא, Modern: Avihu, Tiberian: ’Ǎḇîhū, "he is [my] father") were the two eldest sons of Aaron.[1] According to Leviticus 10, they offered a sacrifice with 'foreign fire' before the LORD, disobeying his instructions, and were immediately consumed by God's fire.