Albert Barnes Commentary 1 Samuel 11:4

"Then came the messengers to Gibeah of Saul, and spake these words in the ears of the people: and all the people lifted up their voice, and wept." — 1 Samuel 11:4 (ASV)

They came to Gibeah because of the connection between the Benjamites and the people of Jabesh (Judges 21).

In the ears of the people. They did not even inquire for Saul, which shows how little he was looked upon as king. The account in 1 Samuel 11:5 shows how completely he was still in a private and humble station.