Psalm 2:7 "I will declare the decree: the LORD hath said unto me, Thou art my Son; this day have I begotten thee."

This prophecy is quoted three times in the New Testament.

The decree that is declared by David, given to him by the Lord is:
Thou art my Son; this day have I begotten thee.

There is more to this decree in verse 8, but the two phrases that concern our discussion are:
1. Thou art my Son
2. this day have I begotten thee

These two phrases are linked.
Most of those who believe in eternal Sonship realize this.

I believe that the origin of the eternal Sonship doctrine came from the false idea that all the decrees of God are eternal. Therefore, if there is a decree spoken by the Lord about Jesus Christ in Psalm 2:7, then it must be an eternal decree, therefore, Jesus must be the eternally begotten Son.

The problem here was that the decree in Psalm 2:7 is linked to a specific day.

Many have taken the Calvinistic approach that, since the all of Gods decrees supposedly are eternal then this must be an eternal day in Psalm 2:7.

This is the mess that you get into, brethren, when you bring your presuppositions to Scripture instead of letting Scripture speak for itself.
The presupposition about eternal decrees is how the eternal Sonship doctrine began.

Most who believe in eternal Sonship realize that the two phrases in Psalm 2:7 are linked.
And I agree with them.

They ARE linked
They answer the questions what and why.

What: Thou art my Son
Why: this day have I begotten thee.

Does this look familiar, brethren?
OF COURSE it does.

The only begotten Son.

It is very difficult to deny that this verse is prophetic of the only begotten Son of God.

Understand that only begotten and first begotten are not the same thing.

Many eternal Sonship proponents try to link only begotten and first begotten, making them the same and, therefore, making Psalm 2:7 about the Resurrection.

Look at the two phrases again:

1. Thou art my SON
2. this day have I BEGOTTEN thee

Jesus was NEVER called the firstbegotten Son when referred to as Gods Son!
(He was when referred to as Marys son).

He was called the ONLY begotten Son.

Psalm 2:7 is NOT a prophecy of the resurrection, as Paul will PLAINLY state in Acts 13:33, 34

Next, we will examine Acts 13, where Psalm 2:7 is first quoted in the New Testament.