In the biblical books Exodus, Leviticus and Numbers, Nadab and Abihu were the two oldest sons of Aaron. 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.
Illustration of the sin of Nadab and Abihu, from a 1907 Bible card.
The Book of Leviticus is the third book of the Torah and of the Old Testament, also known as the Third Book of Moses. Many hypotheses presented by scholars as to its origins agree that it developed over a long period of time, reaching its present form during the Persian Period, from 538 to 332 BC, although this is disputed.
4Q120, a Greek manuscript of Leviticus from the 1st century BCE
Vaikro – Book of Leviticus, Warsaw edition, 1860, page 1
The Tabernacle and the Camp (19th-century drawing)
The Scapegoat (1854 painting by William Holman Hunt)