Verify that most historians claim that King David never existed.
Well, there's plenty of stuff about this on the Internet, you only have to google "did king david exist?" to get all the information you want. Actually all the sources about this topic say almost the same thing, but I think Steven McKenzie's article, from Oxford University, sumarise the historians' perspective quite well:
"The Bible is our only source of information about David. No ancient inscription mentions him. No archaeological discovery can be securely linked to him. The quest for the historical David, therefore, is primarily exegetical."
He goes even more far, and suggests that there's very little evidence to say that "David's United Kingdom" existed.
http://www.nytimes.com/books/first/m/mckenzie-david.html
I will quote some other interesting things:
David and the Kingdom of Damascus
The city of Damascus is at least 4000 years old. It is recorded as being conquered by Pharaoh Tutmosis in the 15th century BC and it became the capital of an Aramean kingdom from the 11th century BC. The Kingdom of Aram-Damascus resisted the Assyrians until late in the 9th century BC, and even came up against Pharaoh Shoshenk in the Jezreel Valley, conquering Israelite Dan along the way. Israelite refugees, displaced by the Arameans, resettled in the hill-country.
In contrast to its heroics and intrigues of "King David", the Bible avoids mentioning Aram's 9th century conquest of much of Israel. Dan, Hazor, Jezreel and Megiddo were among the cities destroyed.
"Around 835 and 800 BC the kingdom of Aram-Damascus controlled the upper Jordan valley and significant areas in northeastern Israel and devastated major Israelite administrative centres in the fertile Jezreel valley as well." Finkelstein, Silberman,The Bible Unearthed, p202.
Curiously, King Hazael of Aram-Damascus (844-803) enjoyed a 40-year reign just like that ascribed to the biblical 'David' (and, for that matter, also to his son 'Solomon'!). The existence of Hazael is not in doubt, whereas outside of the biblical texts, there is as yet NO historical proof of a Hebrew king named David ruling an 'empire'. Much has been made of the so-called Tel Dan Inscription recovered in 1993 (see below) but the "Davidic empire" remains a pious invention, inspired by an Arab kingdom of the same place and time.
"Damascus reached its zenith during the reign of Hazael ... Transjordanian regions were overrun ... Hazael was able to cross Israelite territory to progress down the coastal plain to take Gath in Philistia ... In fact, Hazael appears to have established an empire or sphere of influence not unlike that ascribed to David." B.S.J. Isserlin, The Israelites, p86.
Not David, But Hazael
The city of Methegammah (Tell es-Safi/ Gath) hometown of Goliath! was destroyed in the 9th century BC, not the 10th, and apparently after a siege.
According to archaeologists of Bar-Ilan University, the conqueror was none other than Hazael, King of Aram-Damascus.
"The biblical story of David is indeed mythic in nature.. He spent most of his career as a brigand-king, and, where he ruled, he did so by employing murder and mayhem.. " Baruch Halpern, David's Secret Demons, p 479/80.
Some "David supporters" claim that
The Tel Dan Inscription of an Aramean King is an archeological proof that supports David's existence. But... let's take a look at what the inscription is supposed to say:
"Jehoram, son of Ahab, king of Israel, and Ahaziah, son of Jehoram, king of the House of David. I set their towns to ruin, their land to desolation."
The inscription appears to confirm that a chieftain called David was not pure invention yet even so, it contradicts the biblical story that it was Jehu who assassinated the tribal leaders in Jezreel.
"And Jehu drew a bow with his full strength, and smote Jehoram between his arms, and the arrow went out at his heart, and he sunk down in his chariot ... But when Ahaziah the king of Judah saw this, he fled by the way of the garden house. And Jehu followed after him, and said, Smite him also in the chariot." 2 Kings 9:24,27
But this interpretation of the fragments has been challenged, both by a realignment of the 3 fragments and a corrected rendering of the word "BYTDWD" not "House of David" but a place-name meaning "House of Praise".
"The desire to read the letters bytdvd as house of david is ... a classic example of scholars working backwards from the Bible rather than forwards from the evidence." M. Sturgis, It Ain't Necessarily So, p129.
King David The Boy Wonder