Samuel anoints Saul as King of Israel approximately around the age of 14-15, so David waited for about 15 yrs. or so to be crowned (age30), first King of Judah, then 7 1/2 yrs. later, King of Israel. Most of that time he was a hunted fugitive, running & hiding from the mad-with-jealousy King Saul.
David Refusing the Armor of King Saul. - 1st Samuel 17:39, "And David girded his sword upon his armour, and he assayed to go; for he had not proved it. And David said unto Saul, I cannot go with these; for I have not proved them. And David put them off him."
Rey Federico Guillermo I de Prusia y Margrave Elector de Brandeburgo Rex Fridericus Gulielmus I Borussiae et Marchio Elector Brandenburgi König Friedrich Wilhelm I. von Preußen und Kurfürst von Brandenburg King Frederick William I of Prussia and Margrave Elector of Brandenburg Roi Frédéric-Guillaume I de Prusse et Margrave Électeur de Brandebourg Samuel Theodor Gericke (1665-1730), 1713. @Neoprusiano neoprusiano.tumblr.com