A person or a people with a special relationship to God, often with a special role in salvation history. In the OT and pre-Christian Judaism there are four notable uses of the term “son of God.” First, it is predicated of Israel as a nation (Exod 4:22; Hos 11:1). Second, it is a title given to the monarch at the time of enthronement (Ps 2:7; a coronation psalm). Third, angels are called “sons of God” (Job 38:7; NRSV note). Fourth, in the apocryphal/deuterocanonical Wisdom of Solomon it is applied to the righteous individual (Wis 2:18, NRSV: “child”). In the NT, “Son of God” is used as a christological title for Jesus.
22Then you shall say to Pharaoh, ‘Thus says the Lord: Israel is my firstborn son.
God's Compassion Despite Israel's Ingratitude
1When Israel was a child, I loved him,
and out of Egypt I called my son.
7I will tell of the decree of the Lord:
He said to me, “You are my son;
today I have begotten you.
7when the morning stars sang together
and all the heavenly beings shouted for joy?
18for if the righteous man is God's child, he will help him,
and will deliver him from the hand of his adversaries.