NET
6 As the war continued between the house of Saul and the house of David, Abner was becoming more influential in the house of Saul.
Darby
6 And it came to pass while there was war between the house of Saul and the house of David, that Abner made himself strong for the house of Saul.
KJV
6 And it came to pass, while there was war between the house of Saul and the house of David, that Abner made himself strong for the house of Saul.