Charles Ellicott Commentary 1 Samuel 9:13

"as soon as ye are come into the city, ye shall straightway find him, before he goeth up to the high place to eat; for the people will not eat until he come, because he doth bless the sacrifice; [and] afterwards they eat that are bidden. Now therefore get you up; for at this time ye shall find him." — 1 Samuel 9:13 (ASV)

He doth bless the sacrifice. —It has been well remarked that we have here, in this note of the people’s conduct at the sacrificial banquet of “Raman of the Watchers,” a very early instance of the devout practice among the Hebrews of asking a blessing on meals.