Did you know that many Bible archaeologists thought that David never even existed?
The archaeologists also said that Jerusalem wasn't even a city at the time David was supposed to have lived. However, in 1993 archaeologists made a huge contribution to this debate. While cleaning up an excavation at the biblical Dan, someone noticed an inscription on a stone. It turned out to be part of a victory monument erected by an Aramean ruler celebrating a victory over Israel [1]. On that inscription were words translating to "House of David, King of Israel [1]."
Believers don't need such evidence to know that the Bible is trustworthy when it talks about historical events. However, now there can be no question that David was a person just as real as you.
http://www.creationmoments.com/resources/blog/201310/king-david-discovered [2]
Links:
[1] https://www.thebereancall.org/taxonomy/term/51/israel
[2] http://www.creationmoments.com/resources/blog/201310/king-david-discovered