King David was no king to anything and he and his folks invaded and attacked Jerusalem which had no defenses against an attack. His folks snuck in through tunnel passages and entered the city unnoticed. Once in they slaughtered many within. Then they occupied the city until the Romans drove them out.
Why don't you stick to your moniker and move on?
Below is a map of what happened to the Palestinian people. Does the following support Gods commandment to them or not?
(Gen 17:8 KJV) And I will give unto thee, and to thy seed after thee, the land wherein thou art a stranger, all the land of Canaan, for an everlasting possession; and I will be their God.
(Exo 22:21 KJV) Thou shalt neither vex a stranger, nor oppress him: for ye were strangers in the land of Egypt.
(Exo 23:9 KJV) Also thou shalt not oppress a stranger: for ye know the heart of a stranger, seeing ye were strangers in the land of Egypt.
(Lev 19:34 KJV) But the stranger that dwelleth with you shall be unto you as one born among you, and thou shalt love him as thyself; for ye were strangers in the land of Egypt: I am the LORD your God.
Do you see them loving the stranger?