In Matthew 10:14, Jesus instructs not to persist with rejecters—parallel to not casting pearls before swine. Strong parallel.

In Matthew 15:26, Jesus uses the same 'dogs' imagery—refusing to give children's bread to dogs. Strong parallel.

Proverbs 23:9 directly warns against speaking to fools who scorn words, paralleling the pearl/pig warning in the same way.

Hebrews 10:29 warns of punishment for trampling the Son of God, directly echoing the trampling of pearls in the warning here.

2 Peter 2:22 combines dog and pig proverbs in a context of false teachers, echoing both animal images and the theme of unworthiness.

Exodus 30:32 forbids using sacred anointing oil on common people — the same principle of not giving holy things to the profane.

Leviticus 11:7 declares pigs unclean — Jesus uses this imagery, so the reference provides the OT background for 'pigs' as unclean.

In Mark 7:27, Jesus uses the same 'bread to dogs' metaphor about Gentiles — a direct parallel showing the same principle of not giving holy things to the unworthy.

Acts 13:45-47 shows Paul turning from hostile Jews to Gentiles, exemplifying the principle of not pressing sacred truth on rejecters.

In Proverbs 9:8, the same wisdom principle is given: avoid rebuking mockers who hate you, mirroring the caution against giving sacred things to unworthy recipients.

Proverbs 11:22 compares a beautiful woman without discretion to a gold ring in a pig's snout—a similar mismatch of value and unworthiness.

Philippians 3:2 warns against 'dogs' as false teachers, using the same metaphor but as a caution to watch out rather than withhold.