In his ear, i.e. secretly. A day before Saul came, that he might prepare himself for Saul's reception.
Related Commentaries of 1 Samuel 9:15
1 Samuel 9:15
15 Now the LORD had toldh Samuel in his ear a day before Saul came, saying,
In his ear, i.e. secretly. A day before Saul came, that he might prepare himself for Saul's reception.
15 Now the LORD had toldh Samuel in his ear a day before Saul came, saying,