Genesis 26 seems to jump back in time to the season before Jacob and Esau were born, as described in the previous chapter. This is common in ancient literature. The Lord establishes and renews His covenant promises to Isaac, blessing him abundantly in the land of Philistines during a time of famine. Eventually, Abimelech sends Isaac away due to his growing power and disputes over water rights, but they end up forming a peace treaty. Esau's marriage to foreign women creates strife, adding more fuel to the controversy which is soon to occur. In the next chapter, Jacob will steal his older brother's rightful blessing.