'Mount Ephraim' in the Bible

And Abijah stood up upon Zemaraim a hill in mount Ephraim and said, "Hear me thou Jeroboam and all Israel!

When Asa heard those words and the prophecy of Azariah the son of Obed the Prophet, he took courage and put away the abominations out of all the land of Judah and Benjamin, and out of the cities which he won in mount Ephraim, and renewed the altar of the LORD that was before the porch of the LORD.

And as Jehoshaphat dwelt at Jerusalem, he went to again and went among the people from Beersheba to mount Ephraim, and brought them again unto the LORD God of their fathers.

And Zichri a mighty man in mount Ephraim slew Maaseiah the king's son and Azrikam the lord steward of household, and Elkanah that was next to the king.