(17) The valley of Gerar.--The word nahal, rendered "valley," means a narrow defile through which a summer torrent flows. In the bed of these streams water can generally be found by digging, and Isaac hoped that he was far enough from the city for the enmity to cease. But he was mistaken, though he seems for a short period to have been left in peace.

Verse 17. - And Isaac - perhaps not without remonstrance, but without offering resistance, as became a saint (Matthew 5:5; Romans 12:17, 18; Hebrews 12:14; 1 Peter 3:9) - departed thence (i.e. from Gerar), and pitched his tent in the valley of Gerar, - a valley or nahal meant a low, flat region watered by a mountain stream. The Wady Gerar has been identified with the Joorf-el-Gerar, the rush or rapid of Gerar, three hours south-east of Gaza - and dwelt there.

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.And Isaac departed thence,.... At once, peaceably and quietly, though to his loss and disadvantage, without taking himself either to argument or arms, in favour of himself; he departed immediately, as soon as he perceived his abode was disagreeable to the king and his people; which gives us a very agree, able idea of the calm and peaceable disposition of Isaac:

and pitched his tent in the valley of Gerar, and dwelt there; at some distance from the city of Gerar, as Jarchi observes. Josephus (g) says it was not far from it; but how far is not certain; very probably it was not out of the country, though on the borders of it. Some render it, "the brook of Gerar" (h), and interpret it, that he pitched his tent, and dwelt by it; and the word used does signify a brook as well as a valley; and there was a brook of Gerar, which Sozomen (i) makes mention of.

(g) Antiqu. l. 1. c. 18. sect. 2.((h) "ad torrentem Gerarae", V. L. (i) Eccl. Hist. l. 6. c. 32.