Rashi on Isaiah
Hearken to this The two tribes destined to go in exile to Babylon.
Ibn Ezra on Isaiah
Out of the waters of Judah. That is, out of the seed of Judah. Comp. The fountains of Jacob (Deut. 33:28).
Rashi on Isaiah
O house of Jacob, who are called by the name of Israel That is the tribe of Benjamin, who are not called by the tribe of Judah, but by the general name of the tribes of Israel.