(15) The wells.--In the East the digger of a well is regarded as a public benefactor; but the Philistines stopped those that Abraham had digged, probably because they regarded his possession of them, though confirmed by the covenant between him and Abimelech (Genesis 21:32), as an intrusion upon their rights as the people of the country, Envious, too, at the rapid increase of an alien's wealth, they determined to drive Isaac away; and for this no expedient would be more effectual than the preventing him from procuring water for his cattle. Following upon this came an express command of the king to depart, which Isaac obeyed; for he had sought refuge there because of the famine, and had no right to continue at Gerar, if the people refused their hospitality.

Verse 15. - For all the wells which his father's servants had digged in the days of Abraham his father (vide Genesis 21:30), the philistines had stopped them, and filled them with earth. This act, commonly regarded as legitimate in ancient warfare, was practically to Isaac an act of expulsion, it being impossible for flocks and herds to exist without access to water supplies. It was probably, as the text indicates, the outcome of envy, rather than inspired by fear that Isaac in digging and possessing wells was tacitly claiming the ownership of the land.

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.For all the wells which his father's servants had digged, in the days of Abraham his father,.... For the watering of his flocks and herds, see Genesis 21:25,

the Philistines had stopped them, and filled them with earth; that they might be of no use; and this they did through envy to him, and is mentioned as a proof of it.