That flag called the “Star Of David” has nothing to do with King Daud.
From the Encyclopedia Britannica: In his book Andrew Carrington mentions a date when the Rothschild’s took on a red star as a family emblem. “On February 23rd, 1744 Mayer Amschel Bauer, an Ashkenazi Jew, is born in Frankfurt, Germany, the son of Moses Amschel Bauer, a money lender and the proprietor of a counting house. Moses Amschel Bauer places a red sign above the entrance door to his counting house. This sign is a red hexagram (that geometrically and numerically translates into the number 666), which under Rothschild instruction will end up on the Israeli flag some two centuries later.”