Unknown Author
1 Samuel 16:13BSB·author unknown

So Samuel took the horn of oil and anointed him in the presence of his brothers, and the Spirit of the LORD rushed upon David from that day forward. Then Samuel set out and went to Ramah.

Matthew Henry Presbyterian @wholebiblehenry

If the sons of Jesse were told that God would provide himself a king among them (as he had said, Sa1 16:1), we may well suppose they all made the best appearance they could, and each hoped he should be the man; but here we are told, I. How all the elder sons, who stood fairest for the preferment, were passed by. 1.

Commenting on 1 Samuel 16:6-13

John Gill Reformed Baptist @doctorgill

Then Samuel took the horn of oil,.... Out of his pocket, which he brought along with him by the direction of God: and anointed him in the midst of his brethren; not in the presence of them, they sitting around, or standing by and seeing the ceremony performed; which is not consistent with the secrecy with which Samuel was directed to manage this affair, and...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Then Samuel took the horn of oil, and anointed him--This transaction must have been strictly private.