What does Genesis 36:5 mean?
This and the previous verse (Genesis 36:4) list the names of Esau's five sons. These main descendants of Esau will form a nation called Edom (Genesis 36:1). Esau's twin brother, Jacob, was also given a different name (Genesis 35:10): Israel. In time, Israelites and Edomites will come to hate each other (Numbers 20:14–21; 1 Samuel 14:47; 2 Kings 8:20; Obadiah 1:8–11).The name Jeush means something like "may God help."
Jalam is an awkward name to translate but may refer to something like a "mountain goat."
Korah, also, is not clear, but may mean "bald head."
Genesis 36:1–8 gives a summary of what happened to Esau, the twin brother of Jacob. Esau is called Edom, literally meaning "red." This connection comes from his birth (Genesis 25:25) and an incident with his brother (Genesis 25:30). The land where he settles is also named for Esau's appearance; "Seir" literally means "shaggy." The nation of Edom grows after Esau moves away from Jacob's rapidly growing family. Jacob was given the name "Israel" by God. Over time, the "brother" nations of Israelites and Edomites will become bitter enemies. The short prophetic book of Obadiah predicts harsh judgment on Edom for their treatment of Israel (Obadiah 1:1–2).
Genesis 36 describes the generations of Esau, mostly focusing on the genealogy and rulers of the land of Edom. Repeatedly, the chapter emphasizes that Esau is Edom, repeating an association made earlier in Genesis (Genesis 25:25, 30). The Edomite people are his descendants. The regions in the land of Edom are named for his offspring. The chapter diverts briefly to give the genealogy of the Horite people (Genesis 14:6) who occupied the land before it was conquered (Deuteronomy 2:12). Finally, the chapter lists eight kings of Edom, along with the chiefs whose names became associated with the regions their clans occupied.