Of the tribe of Joseph, namely, of the tribe of Manasseh, Gaddi the son of Susi.

Wesley's Notes

13:11 Of Joseph - The name of Joseph is elsewhere appropriated to Ephraim, here to Manasseh; possibly to aggravate the sin of the ruler of this tribe, who did so basely degenerate from his noble ancestor.

Matthew Henry's Concise Commentary

13:1-20 A memorable and melancholy history is related in this and the following chapter, of the turning back of Israel from the borders of Canaan, and the sentencing them to wander and perish in the wilderness, for their unbelief and murmuring. It appears, De 1:22, that the motion to search out the land came from the people. They had a better opinion of their own policy than of God's wisdom. Thus we ruin ourselves by believing the reports and representations of sense rather than Divine revelation. We walk by sight not by faith. Moses gave the spies this charge, Be of good courage. It was not only a great undertaking they were put upon, which required good management and resolution; but a great trust was reposed in them, which required that they should be faithful. Courage in such circumstances can only spring from strong faith, which Caleb and Joshua alone possessed.