According to the Hebrew Bible, the Tribe of Ephraim (, ʾEp̄rayīm, in pausa: אֶפְרָיִם, ʾEp̄rāyīm) was one of the tribes of Israel. The Tribe of Manasseh together with Ephraim formed the House of Joseph. It is one of the ten lost tribes. The etymology of the name is disputed.
Ephraim as portrayed in biblical narrative
According to the Bible, the Tribe of Ephraim is descended from a man named Ephraim, who is recorded as the son of Joseph, the son of Jacob, and Asenath, the daughter of Potiphera. The descendants of Joseph formed two of the tribes of Israel, whereas the other sons of Jacob were the founders of one tribe each.

The Bible records that the Tribe of Ephraim entered the land of Canaan during its conquest by Joshua, a descendant of Ephraim himself. However, many archeologists have abandoned the idea that Joshua carried out a conquest of Canaan similar to that described in the Book of Joshua, seeing Jews instead as indigenous Canaanites who developed a monotheistic religion over time.

From Joshua to the formation of the first Kingdom of Israel, the Tribe of Ephraim was a part of a loose confederation of Israelite tribes. No central government existed, and in times of crisis the people were led by ad hoc leaders known as Judges (see the Book of Judges).

With the growth of the threat from Philistine incursions, the Israelite tribes decided to form a strong centralised monarchy to meet the challenge. The Tribe of Ephraim joined the new kingdom with Saul as the first king. The widely accepted date for Saul's reign is approximately 1025–1005 BCE. Some scholars dispute this date range and place Saul later, perhaps as late as "the second half of the tenth century B.C.E."
After the death of Saul, the Bible records all the tribes other than Judah remained loyal to the House of Saul. After the death of Ishbosheth, Saul's son and successor to the throne of Israel, the Tribe of Ephraim joined the other northern Israelite tribes in making David, who was then the king of Judah, the king of a reunited Kingdom of Israel. According to archaeologist Israel Finkelstein, there is doubt about whether the biblical ordering for the reigns of the early monarchs is reliable, and that the sequence preserved in the Bible, in which David follows Saul as king of Israel, may not be historically accurate.
However, on the accession of Rehoboam, David's grandson, in c. 930 BCE the northern tribes split from the House of David to form the northern Kingdom of Israel. The first king of the northern kingdom was an Ephraimite, Jeroboam, who likely ruled in 931–909 BCE.
The accents of the tribes were distinctive enough even at the time of the confederacy so that when the Israelites of Gilead, under the leadership of Jephthah, fought the Tribe of Ephraim, their pronunciation of shibboleth as sibboleth was considered sufficient evidence to single out individuals from Ephraim, so that they could be subjected to immediate death by the Israelites of Gilead.
Ephraim was a member of the Northern Kingdom until the kingdom was conquered by Assyria in c. 723 BCE and the population deported. From that time, the Tribe of Ephraim has been counted as one of the Ten Lost Tribes of Israel.
Ephraim is often seen as the tribe that embodies the entire Northern Kingdom and the royal house resided in the tribe's territory (just as Judah is the tribe that embodies the Kingdom of Judah and provided its royal family).
Tribal territory
In the biblical account, following the completion of the conquest of Canaan by the Israelite Joshua allocated the land among the twelve tribes. Kenneth Kitchen, a well-known conservative biblical scholar, dates this event to slightly after 1200 BC. However, the consensus of modern scholars is that the conquest of Joshua as described in the Book of Joshua never occurred.
As recorded in the Book of Joshua, the territory allocated to the Tribe of Ephraim was at the center of Canaan, west of the Jordan, south of the territory of Manasseh, and north of the Tribe of Benjamin. The region later named Samaria (as distinguished from Judea or Galilee) consisted mostly of Ephraim's territory. The area was mountainous, giving it protection, and also highly fertile, giving prosperity,
The territory of Ephraim contained the early centers of Israelite religion - Shechem and Shiloh. These factors contributed to making Ephraim the most dominant of the tribes in the Kingdom of Israel, and led to Ephraim becoming a synonym for the entire kingdom.





