And the days that David reigned over Israel [were] forty
 years
 So says Eupolemus F19, an Heathen writer, which are thus reckoned: 
 seven years reigned he in Hebron;
 the six months over are omitted, ( 2 Samuel 5:5 ) ; this part of his reign was over Judah only: 
 and thirty three years reigned he in Jerusalem;
 over the twelve tribes, in all forty, which round number is only given; though in fact he reigned six months more.