What does 1 Samuel 23:19 mean?

Some people from Ziph went to Saul at Gibeah and said, David is hiding out with us in the strongholds at Horesh, on the hill of Hakilah, south of Jeshimon. 1 Samuel 23:19 - Modern Text Bible

(The people of Ziph betray David's location to Saul, hoping to gain favor with the king.)