אֶפְרַ֫יִם

The seventh, for the seventh month, was Helez the Pelonite, an Ephraimite. There were 24,000 men in his division.

So David’s army marched into the field to engage Israel in the battle, which took place in the forest of Ephraim.

So I am like a moth to Ephraim,and like decay to the house of Judah.

they told him, “Please say Shibboleth.”If he said, “Sibboleth,” because he could not pronounce it correctly, they seized him and killed him at the fords of the Jordan. So at that time 42,000 Ephraimites were killed.

From there the border continued southward to the Brook of Kanah. There were cities belonging to Ephraim among the cities of Manasseh, but the border of Manasseh was on the north side of the brook and ended at the Sea.