The Bible confirms that Jesus is NOT the unique son of God.
"And thou [Moses] shalt say unto Pharaoh, Thus saith the Lord, Israel is my son, even my first born." (Exodus 4:22),
"He [Solomon] shall build a house for my name, and I will establish the throne of his kingdom for ever. I will be his father and he shall be my son." (II Samuel 7:13-14),
"I am a father to Israel and Ephraim is my firstborn"(Jeremiah 31:9), 'long before Jesus was born', "I will declare the decree:the Lord hath said unto me [David], Thou art my son; this day have I begotten thee."(Psalm 2:7),
and "Seth, which was the son of Adam, which was the son of God"(Luke3: 38).
Do the few I mentioned have this "unique begotten son relationship"? Is Jesus still unique because he had no father?
Well brothers and sisters, Adam and Eve had no father or mother. Jesus is a word of God, God said "be" and then Jesus was created, Quran 19:9. It is Blasphemy to say God begotten (sired) Jesus.
Jesus called himself son of man and refused to be called son of God.
"And the 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 4:11)
and again "He [Jesus] said unto them [the disciples], But whom say ye that I am? Peter answering said, The Christ of God. And he straightly charged them, and commanded them to tell no man that thing." (Luke 9:20 and 21).