So shall the Jews bind the man that owneth this girdle, etc. - For though the Romans did it, it was at the Jews’ instigation (Act 21:33; Act 28:17). Such dramatic methods of announcing important future events would bring the old prophets to remembrance. (Compare Isa 20:2, etc.; Jer 13:1, and Eze 5:1, etc.). This prediction and that at Tyre (Act 21:4) were intended, not to prohibit him from going, but to put his courage to the test and when he stood the test, to deepen and mature it.