10:1-3 Those especially who make a profession of religion, should keep from all appearances of evil. A wise man has great advantage over a fool, who is always at a loss when he has anything to do. Sin is the reproach of sinners, wherever they go, and shows their folly.

3. by the way—in his ordinary course; in his simplest acts (Pr 6:12-14). That he "saith," virtually, "that he" himself, &c. [Septuagint]. But Vulgate, "He thinks that every one (else whom he meets) is a fool."