2 Samuel 3:6

And it came to pass, while there was war between the house of Saul and the house of David, that Abner made himself strong in the house of Saul.

During the war between the house of Saul and the house of David, Abner kept acquiring more power in the house of Saul.

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.

Now it happened that while there was war between the house of Saul and the house of David, Abner was strengthening himself in the house of Saul.

During the war between the house of Saul and the house of David, Abner had been strengthening his own position in the house of Saul.

Now it was so, while there was war between the house of Saul and the house of David, that Abner was strengthening his hold on the house of Saul.

As the war between the house of Saul and the house of David went on, Abner became a powerful leader among those loyal to Saul.

While there was war between Saul’s house and David’s house, Abner made himself strong in Saul’s house.