1 Samuel 23:1-14

David hears that the Philistines have attacked the city of Keilah and enquires of the Lord to see if he should go and fight them.

When the lord tells him he should David goes up and fights the philistines at Keilah and saved the citizens of that city.

Where was Saul? Why didn't he come and help Keilah? He was the king land it was his responsibility to save his people.

We find that word reaches Saul that David is in Keilah, so presumably he hears about the attack and does nothing. This may be because he is so preoccupied with finding and killing David that he puts other things aside to focus on the pursuit. Meanwhile David, his enemy, is actually doing the work of the king.

It is easy to focus on the wrong things and forfeit our responsibilities. for Saul it meant his mortal enemy was actually doing Sauls job, even before David was king.