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　　Acts 13:32-33 And we announce to you the gospel of the promise made to the fathers, that God has fully fulfilled this promise to us their children in raising up Jesus, as it is also written in the second Psalm, "You are My Son; this day have I begotten You."

　　Your seed in 2 Samuel 7:12 refers, literally, to Solomon, David's son, who built the temple as God's dwelling place in the Old Testament (1 Kings 5:5; 8:15-20; 1 Chron. 22:9-10; 28:6). However, according to Hebrews 1:5b, which quotes verse 14a of 2 Samuel 7, David's seed is actually Christ as God's firstborn Son (Heb. 1:5a, 6), who has both divinity and humanity and is typified here by Solomon (see footnote 3 on Matt. 1:1). The Son of God became David's seed by being constituted (built) into David's family, that is, into David's being. Here God was actually telling David that instead of building something for God, David needed God to build His Son into him. God did not want David to build Him a house of cedar (2 Sam. 7:5-7), nor was God satisfied that David would be merely a man according to His heart (1 Sam. 13:14). God's desire was to work Himself in Christ into David's humanity to be his life, nature, and constitution. In this way Christ, the Son of God, would become everything to David, including his house (dwelling place) and his seed. (2 Sam. 7:12, footnote 1)

　　The word concerning "your seed" in 2 Samuel 7:12 and "My son" in verse 14 implies that the seed of David would become the Son of God, that is, that a human seed would become a divine Son. This word corresponds with Paul's word in Romans 1:3-4 concerning Christ as the seed of David being designated the Son of God in His humanity in resurrection....It also relates to the Lord's question in Matthew 22:41-45 concerning how the Christ could be both the son of David and the Son of God as David's Lord—a wonderful person, a God-man with two natures, divinity and humanity. These verses clearly unveil that a seed of man, that is, a son of man, can become the Son of God. God Himself, the divine One, became a human seed, the seed of a man, David. This seed was Jesus, the God-man, Jehovah the Savior (Matt. 1:18-21; 2 Tim. 2:8), who was the Son of God by virtue of His divinity alone (Luke 1:35). Through His resurrection He as the human seed became the Son of God in His humanity as well. Thus, in Christ God was constituted into man, man was constituted into God, and God and man were mingled together to be one entity, the God-man. This implies that God's intention in His economy is to make Himself man in order to make man God in life and in nature. (2 Sam. 7:14, footnote 1)

　　In Acts 13:32-33 Paul says, "We announce to you the gospel of the promise made to the fathers, that God has fully fulfilled this promise to us their children in raising up Jesus, as it is also written in the second Psalm, ‘You are My Son; this day have I begotten You.'" Here we see that Christ as the Firstborn of God was promised to the fathers, and God fulfilled this promise to their children in raising up Jesus. Resurrection was a birth to the man Jesus. He was begotten by God in His resurrection to be the firstborn Son of God among many brothers (Rom. 8:29). He was the only begotten Son of God from eternity (John 1:18; 3:16). After incarnation, through resurrection, He was begotten by God in His humanity to be God's firstborn Son.

　　Paul was able to see the Lord's resurrection in the word in Psalm 2: "You are My Son; / Today I have begotten You" (v. 7). Paul applied the word today to the day of the Lord's resurrection. This means that Christ's resurrection was His birth as the firstborn Son of God. Jesus, the Son of Man, was born to be the Son of God through being raised up from the dead. Therefore, God's raising up of Jesus from the dead was His begetting of Him to be His firstborn Son. We need to realize that the Lord's resurrection was His birth. (The Conclusion of the New Testament, pp. 2993-2994)

　　Further Reading: Life-study of 1 & 2 Samuel, msgs. 23, 25