Luke 2.21-22 (& Psalms etc)
Now when all the people were baptized, and when Jesus also had been baptized and was praying, the Heaven was opened, and the Holy Spirit descended upon him in bodily form, as a dove, and a voice came from Heaven, "Thou art my beloved son; with thee I am well pleased."
["Other ancient authorities read 'today I have begotten thee.' "]
Psalms 2->2.9 ["a royal psalm, composed for a coronation" (notes are from Oxford Annotated Bible, 2nd Edition 1971)]
Why do the nations conspire
and the peoples plot in vain?
The kings of the Earth set themselves
And the rulers take counsel together
against the Lord and his annointed, saying
"Let us burst their bonds asunder,
and cast their cords from us."
He who sits in the Heavens laughs;
the Lord has them in derision.
Then He will speak to them in his wrath
and terrify them in His fury, saying
"I have set my king
on Zion, my holy hill."
I will tell of the decree of the Lord:
He said to me, "You are my son;
today I have begotten you.
Ask of me, and I will make
the nations your heritage
and the ends of the Earth your possession.
You shall break them with a rod of iron
and dash them in pieces like a potter's vessel."
from 1 Samuel 9 & 10...
Now the day before Saul came, the Lord had revealed to Samuel: "Tomorrow about this time I will send to you a man from the tribe of Benjamin, and you shall anoint him to be prince over my people Israel... When Samuel saw Saul, the Lord told him, "Here is the man of whom I spoke to you. He it is who shall rule over my people."....
Then Samuel took a vial of oil and poured it on his head, and kissed him and said, "Has not the Lord anointed you to be prince over his people Israel?"....
When they [Saul & servant] came to Gibeah, behold, a band of prophets met him, and the Spirit of God came mightily upon him, and he prophesied among them."
I Samuel 16.1-13
The Lord said to Samuel, "How long will you grieve over Saul, seeing I have rejected him from being king over Israel? Fill your horn with oil, and go; I will send you to Jesse the Bethlehemite, for I have provided for myself a king among his sons."
And Samuel said, "How can I go? If Saul hears of it, he will kill me!"
And the Lord said, "Take a heifer with you, and say, 'I have come to sacrifice to the Lord.' And invite Jesse to the sacrifice, and I will show you what you shall do; and you shall anoint for me him whom I name to you."
Samuel did what the Lord commanded, and came to Bethlehem. The elders of the city came trembling to meet him, and said, "Do you come peaceably?"
And he said, "Peaceably. I have come to sacrifice to the Lord; consecrate yourselves, and come with me to the sacrifice." And he consecrated Jesse and his sons, and invited them to the sacrifice.
When they came, he looked at Eliab and thought, "Surely the Lord's anointed is before me."
But the Lord said to Samuel, "Do not look on his appearance or on the height of his stature, because I have rejected him; for the Lord sees not as man sees. Man looks on the outward appearance, but the Lord looks on the heart."
Then Jesse called Abinadab, and made him pass before Samuel. And he said, "Neither has the Lord chosen this one." Then Jesse made Shammah pass by. And he said, "Neither has the Lord chosen this one." And Jesse made seven of his sons pass before Samuel. And Samuel said to Jesse, "The Lord has not chosen these." And Samuel said to Jesse, "Are all of your sons here?"
And he said, "There remains yet the youngest, but behold, he is keeping the sheep."
And Samuel said to Jesse, "Send and fetch him, for we will not sit down till he comes here."
And he sent, and brought him in. Now he was ruddy, and had beautiful eyes, and was handsome.
And the Lord said, "Arise, anoint him; for this is he."
Then Samuel took the horn of oil, and anointed him in the midst of his brothers; and the Spirit of the Lord came mightily upon David from that day forward. And Samuel rose up, and went to Ramah.