I still hear people ask, “Do you believe Jesus is the Son of God?” By that question, they always mean, “Do you believe Jesus is God?” I usually cringe when I hear it, only because I’ve forgotten how long ago it was when this Sunday School understanding of the appellative “Son of God” was stripped from me. As strange as it may seem, the title “Son of God” does not denote divinity. It is ordinarily a title granted to a monarch. In Psalm 2 (a royal coronation psalm) Yahweh confers sonship upon the king (traditionally thought to be David, but an ancient king of Judea at any rate):

I will tell of the decree of Yahweh:
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.” (Psalm 2:7-9)

Upon his ascension to the throne, the king is adopted by God. Another example: when Yahweh is making his covenant with David, Yahweh promises of David’s son and successor, Solomon, “I will be his father, and he will be my son” (2 Sam 7:14).

In the New Testament period, the phrase “son of god” was also used of Roman emperors. The title was even inscribed on Roman coins. “Son of God” was generally just a synonym for “king.” When Nathaniel says to Jesus, “Rabbi, you are the Son of God! You are the King of Israel!” this is an example of Hebrew parallelism. “Son of God” and “King of Israel” are two ways of saying the same thing. He is essentially confessing his belief that Jesus is Israel’s long awaited messianic (anointed) liberator. In the introduction to Mark’s gospel, the same parallelism is used. Mark begins with “the beginning of the good news of Jesus Christ, the Son of God” (Mark 1:1). In other words, this Jesus is the liberator king, anointed by God. A few verses later, Mark presents Jesus’ baptism in parallel to the coronation psalm we looked at above:

And just as he was coming up out of the water, he saw the heavens torn apart and the Spirit descending like a dove on him. And a voice came from heaven, “You are my Son, the Beloved; with you I am well pleased.” (Mark 1:10-11)

The descent of the Spirit upon Jesus represents the anointing of a king. At Jesus’ baptism, he is adopted by God as his unique Son, the chief representative of Israel, who as king will act on Israel’s behalf. Mark wishes us to see the baptism of Jesus as his coronation, because the baptism foreshadows Jesus’ sacrificial death at the end of the narrative. That sacrificial death is the paradigmatic act through which Jesus represents Israel as Israel’s king. This is why Mark puts the confession of Jesus as “Son of God” on the lips of a Roman centurion upon Jesus’ death. “Now when the centurion, who stood facing him, saw that in this way he breathed his last, he said, ‘Truly this man was the son of a god’” (Mark 15:39). In other words, the centurion recognizes something in Jesus of royalty, according to Mark. Jesus spends the entire narrative in Mark attempting to keep his true identity secret. This is a storytelling device Mark uses to drive home his theological point that Jesus’ kingship (his “Son of Godness”) is seen paradigmatically in his suffering on behalf of the nation.

“Son of God” is also sometimes used of the nation of Israel as a whole, as in Hosea 11:1:

When Israel was a child, I loved him,
and out of Egypt I called my son.

Yet Hosea goes on to show how Israel, God’s son, did not heed his father’s call, but kept going after other gods. Thus, when Matthew applies this same verse (“out of Egypt I called my son”) to Jesus (Matt 2:15), Matthew is making the claim that Jesus will act on Israel’s behalf, but unlike the nation, this representative Son will be faithful to the Father.

Thus, it should be clear that when Jesus sometimes refers to himself as God’s Son, or when he refers to God as his Father, he is not claiming divinity for himself in any ontological (real) sense. By that logic, he must have believed his Jewish opponents were the second through seventy-second persons of the unholy Satanhead, since he identified them as sons of the devil (John 8:44). No, in reality, the issue at stake here is what Jesus is doing. When the Evangelists identify Jesus as “God’s Son,” what they are claiming is that he was appointed by God to do what God wanted done.