Isaiah 7:9

And he bought the hill Samaria of Shemer for two talents of silver, and built on the hill, and called the name of the city which he built, after the name of Shemer, owner of the hill, Samaria. But Omri wrought evil in the eyes of the LORD, and did worse than all that were before him. For he walked in all the way of Jeroboam the son of Nebat, and in his sin wherewith he made Israel to sin, to provoke the LORD God of Israel to anger with their vanities. Now the rest of the acts of Omri which he did, and his might that he showed, are they not written in the book of the chronicles of the kings of Israel? So Omri slept with his fathers, and was buried in Samaria: and Ahab his son reigned in his stead. And in the thirty and eighth year of Asa king of Judah began Ahab the son of Omri to reign over Israel: and Ahab the son of Omri reigned over Israel in Samaria twenty and two years.

In the two and fiftieth year of Azariah king of Judah Pekah the son of Remaliah began to reign over Israel in Samaria, and reigned twenty years.