What's easy to miss here is that God isn't just disapproving of these "sacrifices"; He's equating them with the most heinous abominations imaginable. He's saying the outward act of worship, devoid of a devoted heart, is no better than murder, sacrificing unclean animals, or praising idols. This shows God's radical intolerance for hypocrisy—He cares more about the inner attitude than the outward ritual.
“He who slaughters an ox is like one who kills a man; he who sacrifices a lamb, like one who breaks a dog’s neck; he who presents a grain offering, like one who offers pig’s blood; he who makes a memorial offering of frankincense, like one who blesses an idol. These have chosen their own ways, and their soul delights in their abominations;
English Standard Version (ESV)
The prophet Isaiah is concluding his message to Israel, reiterating God's rejection of their empty religious rituals. This verse directly follows God's declaration that He desires a humble and contrite heart over grand temples. The people are engaged in what appears to be correct worship, yet their hearts are far from God, leading Him to equate their offerings with abhorrent acts like murder and idolatry.
God's patience is immense, but His tolerance for hypocrisy has limits. He doesn't just see the action of worship; He sees the heart behind it.
This verse paints a stark picture: God declares that certain acts of worship are no better than horrific crimes. It's not that the rituals themselves are evil – they were God-ordained! Instead, when performed by those with wicked intentions, they become utterly detestable.
The Heart of the Matter
God is looking for genuine devotion, not a religious performance masking a sinful life.
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God sees straight through outward piety to the hidden desires of our hearts. When we choose our own path, even our worship becomes a form of rebellion.
The latter part of the verse drives home the core issue: 'These have chosen their own ways, and their soul delights in their abominations.' This isn't about a mistake or an oversight; it's a deliberate choice.
The Danger of Self-Will
This passage serves as a powerful warning: our worship is only as pure as our hearts. If our hearts are set on sin, even the most sacred rituals become offensive.
Understand the original words
zebach · Hebrew Noun
A general term for any act of worship involving the slaughter of an animal to make atonement, express gratitude, or seek favor. It signifies the surrender of something valuable to God as an acknowledgment of His lordship and the need for reconciliation.
to'ebah · Hebrew Noun
Things that are morally detestable, repugnant, or idolatrous in the sight of God. The term implies practices that are fundamentally opposed to God’s holy character and law.
This prophecy was delivered during or shortly after the Babylonian exile, a period when the devastation of Jerusalem and the Temple forced the people to confront the meaning of their worship. Isaiah warns that even seemingly legitimate sacrifices are abominable to God when offered by those whose hearts are far from Him, highlighting the hollowness of ritual without genuine devotion.
c. 740 BC
Isaiah's Ministry Begins
Isaiah begins his prophetic ministry during a time of outward prosperity but spiritual decay in Judah, challenging the nation's reliance on empty rituals.
c. 622 BC
Josiah's Reforms
King Josiah institutes sweeping religious reforms after the discovery of the Book of the Law, purging idolatry and centralizing worship in Jerusalem. This highlights the ongoing struggle against syncretism and superficial piety.
597 BC
First Deportation to Babylon
Nebuchadnezzar deports King Jehoiachin and thousands of Judah's elite to Babylon, marking the beginning of the Babylonian exile. This event underscores the consequences of persistent disobedience.
586 BC
Destruction of Jerusalem and the Temple
The Babylonians under Nebuchadnezzar destroy Jerusalem and its Temple, ending Judah as an independent kingdom and scattering its people. This catastrophic event signifies God's judgment on a people who had turned away from Him.
c. 540-530 BC— this verse
Isaiah's Later Prophecies
During the Babylonian exile, Isaiah continues to prophesy, addressing the people's spiritual state and offering hope for future restoration, including warnings against empty worship.
539 BC
Cyrus the Great Conquers Babylon
Cyrus the Great of Persia conquers Babylon, paving the way for the exiled Jewish people to return to Jerusalem and rebuild their Temple.
This passage directly echoes the sentiment of Isaiah 66:3 by stating, 'The sacrifice of the wicked is an abomination; the LORD detests the prayers of the upright,' highlighting that God despises insincere worship, regardless of outward ritual.
Isaiah 1:11-15Here, Isaiah himself condemns the empty sacrifices of his people, explaining that their rituals are meaningless to God because their hearts are far from Him and their hands are full of blood, a clear parallel to the hypocrisy described in chapter 66.
Ezekiel 23:39This passage describes a similar hypocrisy where the people simultaneously killed their children for idols and then entered God's sanctuary to profane it, illustrating the deep offense of combining abominable acts with religious observance.
Matthew 23:27-28Jesus condemns the Pharisees for their outward piety that masked inner corruption, comparing them to whitewashed tombs that look beautiful on the outside but are full of dead men's bones, much like the 'formal worship' Isaiah denounces.
Psalm 50:16-18This psalm directly confronts those who recite God's statutes and take His covenant on their lips, yet despise His word and continue in sin, illustrating the deep offense of performing religious acts while living a life of wickedness.
barnesIsaiah 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."
He that killeth an ox is as if he slew a man - Lowth and Noyes render this, 'He that slayeth an ox, killeth a man.' This is a literal translation of the Hebrew. Jerome renders it,…
clarkeIsaiah 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."
He that killeth an ox is as if he slew a man "He that slayeth an ox killeth a man" - These are instances of wickedness joined with hypocrisy; of the most flagitious crimes committ…
What's easy to miss here is that God isn't just disapproving of these "sacrifices"; He's equating them with the most heinous abominations imaginable. He's saying the outward act of worship, devoid of a devoted heart, is no better than murder, sacrificing unclean animals, or praising idols. This shows God's radical intolerance for hypocrisy—He cares more about the inner attitude than the outward ritual.
The prophet Isaiah is concluding his message to Israel, reiterating God's rejection of their empty religious rituals. This verse directly follows God's declaration that He desires a humble and contrite heart over grand temples. The people are engaged in what appears to be correct worship, yet their hearts are far from God, leading Him to equate their offerings with abhorrent acts like murder and idolatry.
The prophet Isaiah is concluding his message to Israel, reiterating God's rejection of their empty religious rituals. This verse directly follows God's declaration that He desires a humble and contrite heart over grand temples. The people are engaged in what appears to be correct worship, yet their hearts are far from God, leading Him to equate their offerings with abhorrent acts like murder and idolatry.
"“He who slaughters an ox is like one who kills a man; he who sacrifices a lamb, like one who breaks a dog’s neck; he who presents a grain offering, like one who offers pig’s blood; he who makes a memorial offering of fr…" — What's easy to miss here is that God isn't just disapproving of these "sacrifices"; He's equating them with the most heinous abominations imaginable. He's saying the outward act of worship, devoid…
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Last reviewed October 2026
