The Son of Man

Boyd’s Bible Dictionary:

In a limited sense, “man
(Num. 23:1919God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good? (Numbers 23:19); Job 25:66How much less man, that is a worm? and the son of man, which is a worm? (Job 25:6); Psa. 8:44What is man, that thou art mindful of him? and the son of man, that thou visitest him? (Psalm 8:4)). In a broader, higher, and perhaps more generally received Hebrew sense, “the Messiah.” In the N. T. sense, where the term is used some eighty times, it means Christ in Incarnate form and relation (Dan. 7:1313I 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. (Daniel 7:13); Matt. 9:6; 12:8; 18:116But that ye may know that the Son of man hath power on earth to forgive sins, (then saith he to the sick of the palsy,) Arise, take up thy bed, and go unto thine house. (Matthew 9:6)
8For the Son of man is Lord even of the sabbath day. (Matthew 12:8)
11For the Son of man is come to save that which was lost. (Matthew 18:11)
; Mark 2:1010But that ye may know that the Son of man hath power on earth to forgive sins, (he saith to the sick of the palsy,) (Mark 2:10); John 1:51; 3:13; 6:5351And he saith unto him, Verily, verily, I say unto you, Hereafter ye shall see heaven open, and the angels of God ascending and descending upon the Son of man. (John 1:51)
13And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven. (John 3:13)
53Then Jesus said unto them, Verily, verily, I say unto you, Except ye eat the flesh of the Son of man, and drink his blood, ye have no life in you. (John 6:53)
).

Concise Bible Dictionary:

The Lord constantly spoke of Himself as “the Son of Man,” a title that connected Him with universal headship, and not merely with Israel, especially in view of His sufferings and resurrection and kingdom. Though walking about this earth He could say, “The Son of Man which is in heaven” (John 3:1313And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven. (John 3:13)). He, though God, became truly man: could be weary and hungry, and sleep. He prayed as one in dependence on God; was forsaken of God, and died. Yet He was the righteous One—of another order morally from all other men: the Second manout of heaven (1 Cor. 15:4747The first man is of the earth, earthy: the second man is the Lord from heaven. (1 Corinthians 15:47)).
According to Hebrews 2 Christ became Son of Man in order to—
1. “taste death for everything;”
2. to annul “him that had the power of death, that is, the devil;”
3. “to make propitiation for the sins of the people;” and
4. to be “able to succor them that are tempted.”