'Son' in the Bible

to reveal His Son in me so that I might preach Him among the Gentiles [as the good news—the way of salvation], I did not immediately consult with anyone [for guidance regarding God’s call and His revelation to me].

I have been crucified with Christ [that is, in Him I have shared His crucifixion]; it is no longer I who live, but Christ lives in me. The life I now live in the body I live by faith [by adhering to, relying on, and completely trusting] in the Son of God, who loved me and gave Himself up for me.

But when [in God’s plan] the proper time had fully come, God sent His Son, born of a woman, born under the [regulations of the] Law,

And because you [really] are [His] sons, God has sent the Spirit of His Son into our hearts, crying out, “Abba! Father!”

Therefore you are no longer a slave (bond-servant), but a son; and if a son, then also an heir through [the gracious act of] God [through Christ].

But the child of the slave woman was born according to the flesh and had an ordinary birth, while the son of the free woman was born in fulfillment of the promise.

But what does the Scripture say?“Cast out the bondwoman [Hagar] and her son [Ishmael],For never shall the son of the bondwoman be heir and share the inheritance with the son of the free woman.”