ואם באחת יתקעו. פירוש בחצוצרה אחת יבואו הנשיאים לבדם ואם היתה תרועה יסע דגל מחנה יהודה אף על פי שהענן על המשכן ולפי דעת רבים שענן אחר הוא הנוסע לפניהם: AND IF THEY BLOW BUT WITH ONE. This means if they blow with one trumpet, then the princes alone shall come. If a tru’ah (an alarm)9According to tradition a tru’ah is a wavering sound. sounds, then the standard of Judah shall journey, even though the cloud is upon the tabernacle.10And thus could not as yet lead Israel, for the tabernacle was dismantled after the tribe of Judah started their journey. See verse 17. I.E. points this out because, according to Num. 14:14, Israel was led by a cloud. See next note. In the opinion of many, another cloud11Aside from the one that rested on the tabernacle. journeyed before the Israelites.12For Num. 14:14 clearly states, And Thou goest before them, in a pillar of cloud.