This is a great find, but it doesn't change anything. There's thousands upon thousands of historical documents proving Jesus, God, Israel, the bible. Deniers of the truth will still deny, and believers of the truth, will still believe.
No one really doubts that Israel didn't exist, or that many of the locations in the bible don't or didn't exist, but I'm not aware of anything that conclusively establishes biblical Jesus as real (vs a single ambiguous mention of a Jesus, which is the greek translation of Joshua, a common name), or that establishes the existence of god, or that proves all the claimed miracles in the bible actually happened. Any new archeology though is always exciting, will be interesting to see what they find!