And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.
But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law,
Jesus Christ was a man, and Son of God. He was a man like ourselves, yet sinless in character:
For there is one God, and one mediator between God and men, the man Christ Jesus;
1 Timothy 2:5
For we have not an high priest which cannot be touched with the feeling of our infirmities; but was in all points tempted like as we are, yet without sin.
Jesus was both man and son of God because God was his Father; therefore Jesus was the Son of God. Mary, a virgin descended from David, was his mother:
And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ.
therefore he was Son of David, and as such a man partaking in our human nature. Jesus speaks of himself both as Son of God and Son of Man:
Verily, verily, I say unto you, The hour is coming, and now is, when the dead shall hear the voice of the Son of God: and they that hear shall live. … and hath given him authority to execute judgment also, because he is the Son of man.