Matthew 7:6

Acts 13:45-47 NIV
When the Jews saw the crowds, they were filled with jealousy. They began to contradict what Paul was saying and heaped abuse on him. Then Paul and Barnabas answered them boldly: “We had to speak the word of God to you first. Since you reject it and do not consider yourselves worthy of eternal life, we now turn to the Gentiles. For this is what the Lord has commanded us: “‘I have made you a light for the Gentiles, that you may bring salvation to the ends of the earth.’ ”

Matthew 10:14-15 NIV
If anyone will not welcome you or listen to your words, leave that home or town and shake the dust off your feet. Truly I tell you, it will be more bearable for Sodom and Gomorrah on the day of judgment than for that town.

Matthew 15:26 NIV
He replied, “It is not right to take the children’s bread and toss it to the dogs.”

Philippians 3:2 NIV
Watch out for those dogs, those evildoers, those mutilators of the flesh.

Proverbs 23:9 NIV
Do not speak to fools, for they will scorn your prudent words.

Proverbs 26:11 NIV
As a dog returns to its vomit, so fools repeat their folly.

Proverbs 9:7-8 NIV
Whoever corrects a mocker invites insults; whoever rebukes the wicked incurs abuse. Do not rebuke mockers or they will hate you; rebuke the wise and they will love you.