Then Samuel took the horn of oil, and anointed him in the midst of his brethren: and the Spirit of the LORD came upon David from that day forward. So Samuel rose up, and went to Ramah.
Samuel's eye was caught by Eliab's countenance and he rushed to judgment, much as he had done with Saul; but God whispered a correction: look not on the outside. Men judge by what shows, God by what is; the heart is the measure He uses, and therein lies true beauty and fitness for His service.
AI summary
Commenting on 1 Samuel 16:6-13
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...
Then Samuel took the horn of oil, and anointed him--This transaction must have been strictly private.