2. How he encouraged the valour of those about him in the conquest of Debir, v. 15, &c. It seems, though Joshua had once made himself master of Debir (ch. x. 39), yet the Canaanites had regained the possession in the absence of the army, so that the work had to be done a second time; and when Caleb had completed the reduction of Hebron, which was for himself and his own family, to show his zeal for the public good, as much as for his own private interest, he pushes on his conquest to Debir, and will not lay down his arms till he sees that city also effectually reduced, which lay but ten miles southward from Hebron, though he had not any particular concern in it, but the reducing of it would be to the general advantage of his tribe. Let us learn hence not to seek and mind our own things only, but to concern and engage ourselves for the welfare of the community we are members of; we are not born for ourselves, nor must we live to ourselves.