ישעיהו סו:כ פירוש: רש״י ואבן עזרא

and with covered wagons Heb. וּבַצַּבִּים. These are wagons equipped with partitions and a tent. Comp. (Num. 7:3) “Six covered wagons (עֶגְלוֹתצָב).”

To the Lord. To the glory of the Lord, whom they will fear.

and with joyous songs Heb. וּבַכִּרְכָּרוֹת. With a song of players and dancers. Comp. (II Sam. 6:14) “And David danced (מְכַרְכֵּר),” treper in O.F. [Menahem (p. 109) explains it as an expression meaning a lamb. Comp. (supra 16:1) “Send lambs (כַּר) of the ruler of the land.”]