Genesis 26:28 - Joseph Benson’s Commentary on the Old and New Testaments

The Lord is with thee, and thou art the blessed of the Lord As if he had said, Be persuaded to overlook the injuries offered thee, for God has abundantly made up to thee the damage thou receivedst. Those whom God blesses and favours have reason enough to forgive those that hate them, since the worst enemy they have cannot do them any real hurt. Let there be an oath betwixt us Whatever some of his envious subjects might mean, he and his prime minister, whom he had now brought with him, designed no other but a cordial friendship. Perhaps Abimelech had received by tradition the warning God gave to his predecessor, not to hurt Abraham; (Genesis 20:7;) and that made him stand in such awe of Isaac, who appeared to be as much the favourite of Heaven as Abraham was. It appears from this verse that a strong sense still prevailed, in that part of the world, of God's superintending providence, and of his ordering the affairs of men so that blessings might come on the righteous. These Philistines not only observe this with regard to Isaac, but desire to enter into a covenant with him on that account. Would to God there was as much faith in general in regard to thin point in our days, as there seems to have been then, even among the Philistines!