Tribe of Ephraim, Verses 20-29
Included with the genealogy of Ephraim is an incident of ancient cattle rustling and the tragic result. It appears to have occurred seven generations after the father, Ephraim. However, verse 22 speaks of the great grief of the father Ephraim over the loss of his sons. This incident is not found elsewhere in the Scriptures, nor are the murdered sons included in the listing of Numbers 26:35-37. The probable explanation seems to be (as based on the Numbers account), these are not generations, but actual sons of Ephraim. Ezer and Elead, the rustlers, had gone into the area of Gath to steal cattle, and the inhabitants had killed them. Ephraim mourned greatly for them. Later another son was born to him, who was named Beriah, meaning "tragedy."
The descendants of Ephraim’s daughter, Sherah, were the inhabitants and builders of upper and nether Beth-horon, as well as Uzzen-sherah. From verse 25 the lineage descends to Joshua, the leader of Israel.