Passage
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: and Samuel rose up, and went to Ramatha.
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: and Samuel rose up, and went to Ramatha.
1 Samuel 16:11 And Samuel said to Isai: Are here all thy sons? He answered: There remaineth yet a young one, who keepeth the sheep. And Samuel said to Isai: Send, and fetch him: for we will not sit down till he come hither.
1 Samuel 16:12 He sent therefore and brought him. Now he was ruddy and beautiful to behold, and of a comely face. And the Lord said: Arise, and anoint him, for this is he.
1 Samuel 16:13 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: and Samuel rose up, and went to Ramatha.
1 Samuel 16:14 But the Spirit of the Lord departed from Saul, and an evil spirit from the Lord troubled him.
1 Samuel 16:15 And the servants of Saul said to him: Behold now an evil spirit from God troubleth thee.
The verse centers on "Spirit", "samuel", "took", "horn", "anointed", "midst", "brethren", and "lord". It is saying that the verse draws attention to "Spirit" and "samuel", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 12's "He sent therefore and brought him Now..." into verse 14's "But the Spirit of the Lord departed...", so "Spirit" and "samuel" belong inside that flow. In 1 Samuel context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "Spirit" and "samuel" with trust shaped by these words, not by a vague optimism outside the passage.