Isaiah 66:3 - Ellicott's Commentary On The Whole Bible

Bible Comments

He that killeth an ox... — The truth of the previous verse is emphasised by iteration, each clause presenting a distinct illustration of it. Chapter Isaiah 65:3-11 had pointed to tendencies, not yet extinct, which led to open apostasy. Now the prophet declares that there may be as real an apostasy beneath an orthodox creed and an irreproachable ritual. Each act of the hypocrite’s worship is as an idolatrous abomination.

Isaiah 66:3

3 He that killeth an ox is as if he slew a man; he that sacrificeth a lamb,a 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.