The Son Of God
God (see The Holy Father) twice plainly stated that Jesus Christ was His Son, once at His baptism, once at the "transfiguration":
"3:16 And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw The Spirit Of God descending like a dove [see also Christian Doves], and lighting upon him: 3:17 And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased." (Matthew 3:16-17 KJV)
"17:1 And after six days Jesus taketh Peter, James, and John his brother, and bringeth them up into an high mountain apart, 17:2 And was transfigured before them [see The Transfiguration]: and his face did shine as the sun, and his raiment was white as the light. 17:3 And, behold, there appeared unto them Moses and Elias talking with him.
17:4 Then answered Peter, and said unto Jesus, Lord, it is good for us to be here: if thou wilt, let us make here three tabernacles; one for thee, and one for Moses, and one for Elias.
17:5 While he yet spake, behold, a bright cloud overshadowed them: and behold a voice out of the cloud, which said, This is my beloved Son, in whom I am well pleased; hear ye him." (Matthew 17:1-5 KJV)
"This is my beloved Son, in whom I am well pleased; hear ye him"
Jesus plainly identified Himself as the Son of God:
"5:22 For the Father judgeth no man, but hath committed all judgment unto the Son [see When Will You Be Judged? and Could Christ Return Tonight?]: 5:23 That all men should honour the Son, even as they honour the Father. He that honoureth not the Son honoureth not the Father which hath sent him.
5:24 Verily, verily, I say unto you, He that heareth my word, and believeth on him that sent me, hath everlasting life, and shall not come into condemnation [see Damnation]; but is passed from death unto life.
5:25 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 [see Through The Gates Of Hell]. 5:26 For as the Father hath life in himself; so hath he given to the Son to have life in himself; 5:27 And hath given him authority to execute judgment also, because he is the Son of man." (John 5:22-27 KJV)
Many other people recognized Jesus of Nazareth as the Son of God:
"1:49 Nathanael answered and saith unto him, Rabbi, thou art the Son of God; thou art the King of Israel." (John 1:49 KJV)
"11:27 She [i.e. Martha of Martha and Mary; see also The Farewell Dinner At Bethany] saith unto him, Yea, Lord: I believe that thou art the Christ, the Son of God, which should come into the world." (John 11:27 KJV)
"27:54 Now when the Centurion, and they that were with him, watching Jesus, saw the earthquake, and those things that were done, they feared greatly, saying, Truly this was the Son of God." (Matthew 27:54 KJV)
"1:19 For the Son of God, Jesus Christ, who was preached among you by us, even by me [i.e. Paul; see Paul's Ministry and Was Paul Among Them?} and Silvanus and Timotheus, was not yea and nay, but in him was yea." (1 Corinthians 1:19 KJV)
Despite his sarcastic baiting ("If thou be the Son of God"), Satan knew that Jesus was the Son of God. That's why the devil was seeking to corrupt Him with his "temptation of Christ."
"4:1 Then was Jesus led up of the Spirit into the wilderness to be tempted of the devil.
4:2 And when he had fasted forty days and forty nights [see The Forty Day Fasts], he was afterward an hungered.
4:3 And when the tempter came to him, he said, If thou be the Son of God, command that these stones be made bread.
4:4 But he answered and said, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God.
4:5 Then the devil taketh him up into the holy city, and setteth him on a pinnacle of the temple, 4:6 And saith unto him, If thou be the Son of God, cast thyself down: for it is written, He shall give his angels charge concerning thee: and in their hands they shall bear thee up, lest at any time thou dash thy foot against a stone.
4:7 Jesus said unto him, It is written again, Thou shalt not tempt the Lord thy God.
4:8 Again, the devil taketh him up into an exceeding high mountain, and showeth him all the kingdoms of the world, and the glory of them; 4:9 And saith unto him, All these things will I give thee, if thou wilt fall down and worship me.
4:10 Then saith Jesus unto him, Get thee hence, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve." (Matthew 4:1-10 KJV)
Other Devils also recognized Jesus as the Son of God - and were much more forthcoming in admitting it than Satan.
"8:28 And when he was come to the other side into the country of the Gergesenes, there met him two possessed with devils, coming out of the tombs, exceeding fierce, so that no man might pass by that way. 8:29 And, behold, they cried out, saying, What have we to do with thee, Jesus, thou Son of God? art thou come hither to torment us before the time?" (Matthew 8:28-29 KJV)
"3:11 And unclean spirits, when they saw him, fell down before him, and cried, saying, Thou art the Son of God." (Mark 3:11 KJV)
"4:40 Now when the sun was setting, all they that had any sick with divers diseases brought them unto him; and he laid his hands on every one of them, and healed them. 4:41 And devils also came out of many, crying out, and saying, Thou art Christ the Son of God. And he rebuking them suffered them not to speak: for they knew that he was Christ." (Luke 4:40-41 KJV)
Fact Finder: Why was (and still is) it that most of the Messiah's own nation of Judah did not see what so many others did?
See Why Can't 'The Chosen People' See?; also Paul's Blindness Lesson and David, Future King Of Israel