He made them a feast - Probably on the sacrifice that was offered on the occasion of making this covenant. This was a common custom.

And he made them a feast,.... Made a feast like a king, for the king and his grandees; he treated them in a generous way, according to their dignity, and agreeable to his own disposition and substance:

and they did eat and drink; freely, cheerfully, and in a friendly manner; for both having spoken their minds, they agreed to bury all former things oblivion, and live in peace and friendship; though this feast was not on account of the covenant made between them, as is observed by some interpreters, but as an hospitable act, and a token of good will; for the covenant and the oath confirming it seem to be made next morning, as follows:

And he made them a feast, and they did eat and drink.

26:26-33 When a man's ways please the Lord, he maketh even his enemies to be at peace with him, Pr 16:7. Kings' hearts are in his hands, and when he pleases, he can turn them to favour his people. It is not wrong to stand upon our guard in dealing with those who have acted unfairly. But Isaac did not insist on the unkindnesses they had done him; he freely entered into friendship with them. Religion teaches us to be neighbourly, and, as much as in us lies, to live peaceable with all men. Providence smiled upon what Isaac did; God blessed his labours.