Samuel took a horn of oil and anointed David (1 Sam 16:13)

Samuel was the son of Elkanah and Hannah who had long been barren. Hannah dedicated him to the Lord as a child and brought him to Eli the priest. When Samuel was a child, he heard the voice of the Lord speak to him at the shrine in Shiloh. As an adult, Samuel played an important part in uniting the tribes against the growing threat of the Philistines. Samuel anointed Saul as king of Israel, and later went to Bethlehem anoint David as Saul's successor.

1 Sam 3:1-18 - Call
1 Sam 10:1-8 - Anoints Saul
1 Sam 16:1-13 - Anoints David