Isaiah 66:3 also condemns those who combine sacrifice with abominable practices, reinforcing the same theme of syncretistic worship in Isaiah 66:17.

In Isaiah 65:3, the people sacrifice in gardens — the very practice condemned in this verse.

In Isaiah 65:4, they eat pig's flesh — the same forbidden practice mentioned here.

In Isaiah 1:29, the people are ashamed of gardens they chose — the same idolatrous garden imagery as the purification rites here.

Deuteronomy 14:3-8 lists the clean and unclean animals, including the pig—the very law the sinners in Isaiah 66:17 are violating by eating swine's flesh.

Leviticus 11:7 explicitly declares the pig unclean, directly condemning the practice of eating swine's flesh described in Isaiah 66:17.

Deuteronomy 14:8 specifically calls the pig unclean, providing the legal basis for the condemnation of eating swine in Isaiah 66:17.

Ezekiel 4:14 shows Ezekiel’s refusal to eat unclean food, contrasting sharply with the sinners in Isaiah 66:17 who indulge in swine and abominations.