John J. Parsons has put this site together, which assists Christians in studying Biblical Hebrew and understanding the Jewishness of the Bible. If you want to understand David, this is exactly the kind of resource you need.
John has formally studied and been involved in a number of ministries. There is a wealth of awesome knowledge on this site which should interest you, including Torah readings, prayers, priestly blessings, Kaddish, Talmud, New Testament topics and more.
Please check it out and donate. A donation box is at the bottom of the “About HFC” page.