Acts 13:33
“God hath fulfilled the same unto us their children, in that he hath raised up Jesus again; as it is also written in the second psalm, Thou art my Son, this day have I begotten thee.”
And he was seen many days of them which came up with him from Galilee to Jerusalem, who are his witnesses unto the people.
And we declare unto you glad tidings, how that the promise which was made unto the fathers,
God hath fulfilled the same unto us their children, in that he hath raised up Jesus again; as it is also written in the second psalm, Thou art my Son, this day have I begotten thee.
And as concerning that he raised him up from the dead, now no more to return to corruption, he said on this wise, I will give you the sure mercies of David.
Wherefore he saith also in another psalm, Thou shalt not suffer thine Holy One to see corruption.
Why This Verse Was Tagged
This verse was identified by multiple independent signals: structural patterns, prophetic context, and vocabulary — then validated by a probability model (Snorkel).
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“I will declare the decree: the Lord hath said unto me, Thou art my Son; this day have I begotten thee.”
“I will declare the decree: the Lord hath said unto me, Thou art my Son; this day have I begotten thee.”
“For unto which of the angels said he at any time, Thou art my Son, this day have I begotten thee? And again, I will be to him a Father, and he shall be to me a Son?”
“And he said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning me.”
“So also Christ glorified not himself to be made an high priest; but he that said unto him, Thou art my Son, to day have I begotten thee.”