Jamieson, Fausset and Brown on Zechariah 11:15

15. yet--"take again"; as in Zec 11:7 previously he had taken other implements.

instruments--the accoutrements, namely, the shepherd's crook and staff, wallet, &c. Assume the character of a bad ("foolish" in Scripture is synonymous with wicked, Psa 14:1) shepherd, as before thou assumedst that of a good shepherd. Since the Jews would not have Messiah, "the Good Shepherd" (Joh 10:11), they were given up to Rome, heathen and papal, both alike their persecutor, especially the latter, and shall be again to Antichrist, the "man of sin," the instrument of judgment by Christ's permission. Antichrist will first make a covenant with them as their ruler, but then will break it, and they shall feel the iron yoke of his tyranny as the false Messiah, because they rejected the light yoke of the true Messiah (Da 11:35-38; 12:1; 9:27; 2Th 2:3-12). But at last he is to perish utterly (Zec 11:17), and the elect remnant of Judah and Israel is to be saved gloriously.