26:12-17 God blessed Isaac. Be it observed, for the encouragement of poor tenants who occupy other people's lands, and are honest and industrious, that God blessed him with a great increase. The Philistines envied Isaac. It is an instance of the vanity of the world; for the more men have of it, the more they are envied, and exposed to censure and injury. Also of the corruption of nature; for that is an ill principle indeed, which makes men grieve at the good of others. They made Isaac go out of their country. That wisdom which is from above, will teach us to give up our right, and to draw back from contentions. If we are wrongfully driven from one place, the Lord will make room for us in another.

15. all the wells which his father's servants had digged … the Philistines had stopped, &c.—The same base stratagem for annoying those against whom they have taken an umbrage is practiced still by choking the wells with sand or stones, or defiling them with putrid carcases.