Son of God –

Matt. 16: 15-17 “He saith unto them, But whom say ye that I am?  And Simon Peter answered and said, Thou art the Christ, the Son of the living God. And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed

[it] unto thee, but my Father which is in heaven.”

It should be noticed that the scriptures are consistent with themselves throughout, that nowhere is the Lord Jesus spoken of as his own father, the Almighty, Jehovah, but he is recognized as in his own statements as being the Son of God – the offspring of the Almighty, full of the Father’s spirit, grace and power – God manifest in the flesh – the best possible manifestation of the Father amongst men, of that heavenly Father of whom it is declared, “Who only has immortality, dwelling in the light which no man can approach unto, whom no man hath seen or can see”  I Tim 6:16  The Only Begotten of the Father, full of grace and truth, represent him and the glorious qualities of his character to humanity.   The apostles discerned this, and honored the Son accordingly as the Father had already honored him.

Son of Men –

[Jhn 8:28 KJV] 28 “Then said Jesus unto them, When ye have lifted up the Son of man, then shall ye know that I am [he], and [that] I do nothing of myself; but as my Father hath taught me, I speak these things.”

[Mat 16:13 KJV] 13 “When Jesus came into the coasts of Caesarea Philippi, he asked his disciples, saying, Whom do men say that I the Son of man am?”

[Mat 8:20 KJV] 20 “And Jesus saith unto him, The foxes have holes, and the birds of the air [have] nests; but the Son of man hath not where to lay [his] head.”

Son of Man is a title recognized among the Jews as appropriate to the Messiah; a title applied to Messiah by Daniel the prophet “(Dan 7:13-14 KJV] “I saw in the night visions, and, behold, [one] like the Son of man came with the clouds of heaven, and came to the Ancient of days, and they brought him near before him. And there was given him dominion, and glory, and a kingdom, that all people, nations, and languages, should serve him: his dominion [is] an everlasting dominion, which shall not pass away, and his kingdom [that] which shall not be destroyed.”

Jesus positively declared that he was the promised Messiah (Christ in Greek)  when he was talking to the Samaritan woman. John 4:25, 26 reads, “The woman saith unto him, I know that Messiah cometh, which is called Christ: when he is come, he will tell us all things. Jesus saith unto her, I that speak unto thee am he.”