The successor (next in line) of the family lineage. This is how Jesus could claim to be both the "Son of Man" and the "Son of God". In the physical sense, Jesus was born to Mary and Joseph - supporting the "Son of Man" claim. But once He was baptized and received the Holy Spirit, he became the "Son of God". This is in a spiritual sense and it holds a position that no one born of the flesh can ever attain. This relationship between Jesus and God the Father explains why no one born of the flesh will ever go to heaven when they die. Heaven is beyond the reach of mortals. Many people misinterpret the Bible regarding this, but careful reading will reveal the facts.

I believe he is the literal son of God.

Well...let's look at your proposals first: ||| Does it mean a representative, Answer: no, that's not what the word means. ||| Does it mean ...an emissary, Answer: no, that's not what the word means. ||| Does it mean ...an angel Answer: no, that's not what the word means. ||| or does it mean son like God had a wife and they created a son together - like human beings would? Answer: no...but at least that is near to one actual meaning of the word "son", and much nearer to the Biblical meaning of the word. *** What the word means in the original Biblical language: the word translated "son" is "huios", which is a Koine Greek word. (The New Testament was authored almost entirely in Koine Greek, and the word used in the phrase "son of God" in the New Testament is always the word "huios".) Here you can see the full set of definitions for that word: [[ https://www.studylight.org/lexicons/eng/greek/5207.html ]] MOST IMPORTANTLY and TYPICALLY it means "immediate male descendant [i.e. a human male who is the direct offspring of the mentioned parent]". Frequently it means "male offspring, direct or indirect, of the mentioned parent" (that is to say: not only a son, but also a grandson, great-grandson, etc. would be described using the word "huios", and we see that usage in several passages in the Bible) Another important meaning - again, we see several usages in the Bible - for "son of" is "someone with the same noteworthy characteristics as". The noteworthy characteristics might be praiseworthy (e.g. "son of Abraham") or not (e.g. "son of the Devil") *** What does the phrase "son of God" mean in the Bible? Answer: the meaning is probably intentionally ambiguous. Certainly it has the most obvious meaning: that Jesus - we can say more precisely: the physical, human being known as "Jesus" - is the offspring of God, which offspring God "begat" supernaturally upon Mary (later wife of Joseph). But the Bible is careful to never describe Mary as a "wife" of God, and indeed Jesus was born to Mary when Mary was married to Joseph. SO: very importantly and obviously: the physical body of Jesus is - physically - the offspring of God. Referring Bible passage: [[ https://www.biblegateway.com/passage/?search=luk+1%3A31-35&version=NASB1995 ]] *** Second: Jesus is ALSO "the son of God" in the sense "having the same noteworthy characteristics as God". Example passage: Luk 4:3-10 (where Satan tests Jesus by claiming that if Jesus is son of God then he will possess certain supernatural / miraculous abilities, and prompting Jesus to prove himself by demonstrating those abilities) *** But there are also definitely additional connotations. For example: in at least one passage the description "son of God" is clearly equated with "the Messiah". (Mat 26:63)...but JUST as clearly that is not ALWAYS how the phrase "son of God" is used in the Bible (compare Luk 3:38)

You are leaving something out. Do not forget the word begotten. The Gospel of John is the one that emphasizes Jesus as the son of God and there is somewhat of a genealogy shown. Before Christ was born into the world it is He that created the world. Colossians 1:16 For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him: ****John 1:1 In the beginning was the Word, and the Word was with God, and the Word was God. 2 The same was in the beginning with God. 3 All things were made by him; and without him was not any thing made that was made. 4 In him was life; and the life was the light of men.****Genesis 1:1 In the beginning God created the heaven and the earth. 2 And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters. 3 And God said, Let there be light: and there was light.****John 8:12 Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life. https://www.youtube.com/watch?v=61lsDJ-cZY8

In the bible it's capitalised for Jesus being the first fruits through which a follower is saved, but small caps for everyone else as becoming a son of God, born of the Holy spirit of God that dwells within. Quote John 1:12 "But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:" Prior to this you are of the earth, as the first Adam. As for the sons of God as in Genesis 6:4 Some believe this means those who follow God versus those who don't in this verse it is insinuated that the daughters of men, in being called this meant those who did not follow God. Others believe that this is in reference to fallen angels, or sons of the Giants, however there is no where in the Bible that God calls angels his sons. This is a metamorphosis of interpretation of a certain race of giants, going back to the Babylonian period https://www.jewishvirtuallibrary.org/nephilim