Whoever slaughters an ox is like one who slays a man; whoever sacrifices a lamb is like one who breaks a dog’s neck; whoever presents a grain offering is like one who offers pig’s blood; whoever offers frankincense is like one who blesses an idol. Indeed, they have chosen their own ways and delighted in their abominations.
Here, I. The temple is slighted in comparison with a gracious soul, Isa 66:1, Isa 66:2. The Jews in the prophet's time, and afterwards in Christ's time, gloried much in the temple and promised themselves great things from it; to humble them therefore, and to shake their vain confidence, both the prophets and Christ foretold the ruin of the temple, that God would leave it...
Commenting on Isaiah 66:1-4
He that killeth an ox, is as if he slew a man,.... Not that killed the ox of his neighbour, which, according to law, he was to pay for; or that killed one for food, which was lawful to be done; but that slew one, and offered it as a sacrifice; not blamed because blind or lame, or had any blemish in it, and so...
God loathes even the sacrifices of the wicked (Isa 1:11; Pro 15:8; Pro 28:9). is as if--LOWTH not so well omits these words: "He that killeth an ox (presently after) murders a man" (as in Eze 23:39). But the omission in the Hebrew of "is as if"--increases the force of the comparison. Human victims were often offered by the heathen.