Jesus has warned us not to judge lest our unrighteous measure of judgment condemns us (Matt. 7:1-2). Jesus forthrightly judged (condemned) hypocritically judging others while ignoring ourselves (Matt. 7:3-5). James reinforced this truth, “For judgment is without mercy to the one who has shown no mercy. Mercy triumphs over judgment” (James 2:13). Jesus went on to imply we must judge several things: (1) What is holy and what are pearls, and (2) Who are dogs and swine. Holy things are pure, blameless, and set apart to God and His service. Your pearls would be your precious things. The gospel, salvation, faith, and heavenly treasures are among the holy and valuable things we judge to be great treasures. Dogs and swine were unclean under the Law of Moses and used by Christ as figures of impure, contemptible character and conduct (cf. Deut. 23:18; 2 Kings 8:13). But the dogs and swine in this passage have two legs, not four. So, take care to live holy and not defile yourself with evil companions (1 Cor. 15:33). Judge error from the truth and avoid the “dogs” who hold God’s truth in contempt and with their false doctrines (Phil. 3:2-3). Oh yes, we must judge what is right to abhor what is evil and cling to what is good (Luke 12:57; Rom. 12:9). God’s word of truth is holy. It identifies our pearls, and those whose sin and error identifies them as dogs and swine. Beware. They will turn on you when given a chance. Come out, be separate, and do not touch what is unclean (2 Cor. 6:17-7:1).