*Minor differences ignored. Grouped by changes, with first version listed as example.
And Abimelech said unto Isaac. It is uncertain whether the king of Gerar expelled Isaac of his own accord from his kingdom, or whether he commanded him to settle elsewhere, because he perceived him to be envied by the people. He possibly might, in this manner, advise him as a friend; although it is more probable that his mind had become alienated from Isaac; for at the close of the chapter Moses relates, that the holy man complains strongly of the king as well as of others. But since we can assert nothing with certainty respecting the real feelings of the king, let it suffice to maintain, what is of more importance, that in consequence of the common wickedness of mankind, they who are the most eminent fall under the suspicion of the common people. Satiety, indeed, produces ferocity. Wherefore there is nothing to which the rich are more prone than proudly to boast, to carry themselves more insolently than they ought, and to stretch every nerve of their power to oppress others. No such suspicion, indeed, could fall upon Isaac; but he had to bear that envy which was the attendant on a common vice. Whence we infer, how much more useful and desirable it often is, for us to be placed in a moderate condition; which is, at least, more peaceful, and which is neither exposed to the storms of envy, nor obnoxious to unjust suspicions. Moreover, how rare and unwonted was the blessing of God in rendering Isaac prosperous, may be inferred from the fact, that his wealth had become formidable both to the king and to the people. A large inheritance truly had descended to him from his father; but Moses shows, that from his first entrance into the land, he had so greatly prospered in a very short time, that it seemed no longer possible for the inhabitants to endure him.
Go from us; for thou art much mightier than we - This is the first instance on record of what was termed among the Greeks ostracism; i.e., the banishment of a person from the state, of whose power, influence, or riches, the people were jealous. There is a remarkable saying of Bacon on this subject, which seems to intimate that he had this very circumstance under his eye: "Public envy is an ostracism that eclipseth men when they grow too great." On this same principle Pharaoh oppressed the Israelites. The Philistines appear to have been jealous of Isaac's growing prosperity, and to have considered it, not as a due reward of his industry and holiness, but as their individual loss, as though his gain was at their expense; therefore they resolved to drive him out, and take his well-cultivated ground, etc., to themselves, and compelled Abimelech to dismiss him, who gave this reason for it, עצמת ממנו atsamta mimmennu, Thou hast obtained much wealth among us, and my people are envious of thee. Is not this the better translation? for it can hardly be supposed that Isaac was "mightier" than the king of whole tribes.
And Abimelech said unto Isaac, go from us,.... Which was either said by way of advice, consulting Isaac's good, and the peace of his own kingdom; or else by way of command, enjoining him to depart, having a secret envy to him himself, or at least was jealous of his growing power and wealth:
for thou art much mightier than we; in riches or goods, as the Targum of Jonathan adds; or in number; his family being greatly increased, his servants numerous, many being born of them in his house; Abraham had three hundred and eighteen trained servants in his house, Genesis 14:14; how many Isaac had is not certain; they must be a large number for Abimelech to fear anything from them. Some choose to interpret the words, thou hast increased, or thou hast got much from us, and by us; and therefore it is high time for thee to be gone from us.
*More commentary available at chapter level.