2 Samuel 5:4

Thirty years old, was David when he began to reign, - forty years, he reigned:

1 Chronicles 26:31

Of the Hebronites, Jerijah, was chief, he was of the Hebronites by his generations, by his fathers, - in the fortieth year of the reign of David, were they sought out, and there were found among them heroes of valour, in Jazer of Gilead;

1 Chronicles 29:27

and, the days that he reigned over Israel, were forty years, - in Hebron reigned he seven years, and in Jerusalem, reigned he, thirty-three.

Luke 3:23

And, Jesus himself, was, when he began, about thirty years of age, being the son, as was supposed - of Joseph, of Heli:

1 Kings 2:11

Now, the days that David reigned over Israel, were forty years, - in Hebron, reigned he seven years, and, in Jerusalem, reigned he thirty and three years.

1 Chronicles 3:4

six born to him in Hebron, and he reigned there, seven years and six months. And, thirty and three years, reigned he, in Jerusalem.

Treasury of Scripture Knowledge

Summary

David was thirty years old when he began to reign, and he reigned forty years.

Thirty

Bible References

Thirty

Luke 3:23
And, Jesus himself, was, when he began, about thirty years of age, being the son, as was supposed - of Joseph, of Heli:

Forty

1 Chronicles 26:31
Of the Hebronites, Jerijah, was chief, he was of the Hebronites by his generations, by his fathers, - in the fortieth year of the reign of David, were they sought out, and there were found among them heroes of valour, in Jazer of Gilead;
1 Chronicles 29:27
and, the days that he reigned over Israel, were forty years, - in Hebron reigned he seven years, and in Jerusalem, reigned he, thirty-three.