'Sons of David' in the Bible

Now these were the sons of David, which were born unto him in Hebron; the firstborn Amnon, of Ahinoam the Jezreelitess; the second Daniel, of Abigail the Carmelitess:

These were all the sons of David, beside the sons of the concubines, and Tamar their sister.

And Benaiah the son of Jehoiada was over the Cherethites and the Pelethites; and the sons of David were chief about the king.