No. David (Dovid HaMelech) was the first official Jewish king.
Yes
They were kings after God's heart.
No. The Star of David is commonly used as a symbol of Judaism. Jews believe in the same God that Christians do, but do not believe that Jesus was the Messiah.
The Jews do not believe that God can take a human form. Mashiach (the anointed) will be a descendant of David and entirely human.
David was the second King of Israel. His heart was dedicated to God and he was a godly man. To the Jews and Christians, he is an example of what we are to be.
We worship only God. Jews hold King David in reverence, similar to the way that Catholics hold the Pope in reverence or the way that Muslims hold Mohammed in reverence, but they do not elevate him to the level of worship. The reason for this reverence was his ability to rule according to the Divine Mandates of the Torah. See the attached Related Link for more about King David.
The Shield of David (or Magen David) does not help the Jews. It is just a symbol of Jewish nationality and identity.
Jews believe in God the creator and in the Torah which God gave.
Jews pray to God
God's gift to the Jews is the promise God gave to Abraham ,Issac,and Jacob. It's an everlasting covenant. Like the land Israel is in now. It belongs to them. It's a promise God made with Abraham, Issac,and Jacob and carried through to Moses and King David. The only thing is that, some Jews don't embrace Jesus as Messiah. My ? to the Jews that don't believe Jesus is the Messiah,other than Jesus,who has fulfilled all the old testament prophecy concerning who is the Messiah?
Yes, same God for also Christians and Jews.
the star of David belonged to king David of the Jews.
Moses counted the Israelites at God's command (Numbers ch.26). Later, Joab counted them at the command of King David.