Then Samuel took a vial of {a} oil, and poured it upon his head, and kissed him, and said, Is it not because the LORD hath anointed thee to be captain over his inheritance?

(a) In the Law this anointing signified the gifts of the Holy Spirit, which were necessary for those who would rule.

Wesley's Notes

10:1 Poured it - Which Is was the usual rite in the designation, as of priests and prophets, so also of kings, whereby was signified the pouring forth of the gifts of God's spirit upon him, to fit him for the administration of his office. These sacred unctions then used, pointed at the great Messiah, or anointed One, the King of the church, and High - priest of our profession, who was anointed with the oil of the spirit without measure, above all the priests and princes of the Jewish church. Kissed - As a testimony of his sincere friendship and affection to him. His inheritance - That is, over his own peculiar people. Whereby he admonisheth Saul, that this people were not so much his, as God's; and that he was not to rule them according his own will, but according to the will of God.

Jamieson-Fausset-Brown Bible Commentary

CHAPTER 10

1Sa 10:1-27. Samuel Anoints Saul, and Confirms Him by the Prediction of Three Signs.

1. Then Samuel took a vial of oil-This was the ancient (Jud 9:8) ceremony of investiture with the royal office among the Hebrews and other Eastern nations. But there were two unctions to the kingly office; the one in private, by a prophet (1Sa 16:13), which was meant to be only a prophetic intimation of the person attaining that high dignity-the more public and formal inauguration (2Sa 2:4; 5:3) was performed by the high priest, and perhaps with the holy oil, but that is not certain. The first of a dynasty was thus anointed, but not his heirs, unless the succession was disputed (1Ki 1:39; 2Ki 11:12; 23:30; 2Ch 23:11).

kissed him-This salutation, as explained by the words that accompanied it, was an act of respectful homage, a token of congratulation to the new king (Ps 2:12).

Matthew Henry's Concise Commentary

10:1-8 The sacred anointing, then used, pointed at the great Messiah, or Anointed One, the King of the church, and High Priest of our profession, who was anointed with the oil of the Spirit, not by measure, but without measure, and above all the priests and princes of the Jewish church. For Saul's further satisfaction, Samuel gives him some signs which should come to pass the same day. The first place he directs him to, was the sepulchre of one of his ancestors; there he must be reminded of his own mortality, and now that he had a crown before him, must think of his grave, in which all his honour would be laid in the dust. From the time of Samuel there appears to have been schools, or places where pious young men were brought up in the knowledge of Divine things. Saul should find himself strongly moved to join with them, and should be turned into another man from what he had been. The Spirit of God changes men, wonderfully transforms them. Saul, by praising God in the communion of saints, became another man, but it may be questioned if he became a new man.