1 Samuel 10:8

‘And from the sacrifice of peace offerings he shall bring near as an offering by fire to Yahweh its fat, the entire fat tail which he shall remove close to the backbone, and the fat that covers the entrails and all the fat that is on the entrails,

‘Now this will be the sign to you which will come concerning your two sons, Hophni and Phinehas: on the same day both of them will be put to death.

Then Samuel said to the people, “Come and let us go to Gilgal and renew the kingdom there.”

So all the people went to Gilgal, and there they made Saul king before Yahweh in Gilgal. There they also offered sacrifices of peace offerings before Yahweh; and there Saul and all the men of Israel were exceedingly glad.

So he waited seven days, according to the appointed time set by Samuel, but Samuel did not come to Gilgal; and the people were scattering from him.