What was he talking about?
The same thing Paul meant when he told us not to judge unbelievers, but to take care to judge our own.
Jesus was speaking of judging. Clearly, He meant to judge properly. He didn’t forbid all judging when in Matthew 7:1. He said, “Judge not,” else how would we determine who is/isn’t a pig or dog? Elsewhere in John, He also told us to “judge a righteous judgment.” So don’t let people tell you all judgment is wrong.
“But what about the pig and dog?”
They will respond wrongly to truth and to you!
That’s how unbelievers act when you attempt to reform them. It’s not our job to reform the world—just to witness to it about the way of salvation.
There are Christians who waste valuable time and money seeking to do what Jesus forbade. And what do they get for all their trouble? Just what Jesus said pigs and dogs would do!
Why then? Why disobey? Why cause yourself such misery? It’s wrong—and, therefore, it’s stupid!
Whoever reproves a mocker gets insulted,
and whoever corrects a wicked person invites bruises.
Don’t correct a mocker or he will hate you;
correct a wise man and he will love you.
Remember, it can be dangerous to try to reform unbelievers!