Isaiah 66:3

He that killeth an ox is as if he slew a man; he that sacrificeth a lamb, as if he cut off a dog’s neck; he that offereth an oblation, as if he offered swine’s blood; he that burneth incense, as if he blessed an idol. Yea, they have chosen their own ways, and their soul delighteth in their abominations.

Isaiah 66:3 (KJV)

Context

Isaiah 66:3 stands near the end of the prophetic book, where the Lord confronts the people of Israel for their hypocritical worship. The verse lists four prescribed acts of worship—killing an ox, sacrificing a lamb, offering an oblation, and burning incense—and compares each to a heinous act. These comparisons show that when worship is offered without a right heart, it becomes as detestable to God as murder, unclean slaughter, or idolatry.

Meaning

The first analogy equates killing an ox, a common sacrificial animal, with slaying a man. This underscores that God regards the shedding of innocent blood without reverent purpose as a grave moral offense. The second likens offering a lamb to cutting off a dog’s neck; in ancient Israel, dogs were unclean, so a lamb offered without sincere devotion is as contemptible as an unclean sacrifice.

The passage then compares the grain offering, or oblation, to presenting swine’s blood. Pigs were expressly forbidden in Israelite dietary law, and their blood symbolized impurity. The comparison teaches that an impure or thoughtless offering is equivalent to presenting something detestable before God. Finally, burning incense—an accepted element of worship—is set against blessing an idol. When incense is offered with the intention of honoring false gods, the act becomes an abomination, revealing the seriousness of idolatry.

Biblical connections

The verse ends by declaring that the people have chosen their own ways and delight in abominations. This reflects a broader prophetic theme: Israel’s rebellion, idolatry, and disregard for God’s covenant. The contrast between “their own ways” and God’s ways highlights a willful choice of evil, and the verse warns that external religious observance without internal devotion is detestable to God.

Application

For contemporary believers, the passage serves as a reminder that external rituals are meaningless without a heart of genuine devotion. True worship demands integrity, reverence for life, and a rejection of anything that contaminates the worship of the living God. The verse calls us to examine our motives, ensuring that our worship is rooted in sincere faith rather than empty tradition.