According to the Bible Jesus is the SON of God. He is also our brother.
I think you're equivocating on the word son. For example, the bible designates several people as God's "firstborn son"
Ex 4:22 You must say to Pharaoh, ‘Thus says the Lord, “Israel is my son, my firstborn
Zech 12:10...they will look on Me whom they have pierced; and they will mourn for Him, as one mourns for an only son, and they will weep bitterly over Him like the bitter weeping over a firstborn.
Ps 89:27 I also shall make him My firstborn, The highest of the kings of the earth.
So a "firstborn son" in cases like these is talking about rank, not a literal physical birth from a father and mother (Israel is a collective entity anyway). And it's used to denote different entities. Israel is God's firstborn as they are the chosen people. David is the firstborn as he is the highest rank among God's people.
2 Sam
7:13 He will build a house for my name, and I will make his dynasty permanent.
7:14 I will become his father and he will become my son. When he sins, I will correct him with the rod of men and with wounds inflicted by human beings.
7:15 But my loyal love will not be removed from him as I removed it from Saul, whom I removed from before you
1 Chr 17:13 I will be his father and he shall be My son; and I will not take My loving kindness away from him, as I took it from him who was before you.
1 Chr 28:6 "He said to me, ‘Your son Solomon is the one who shall build My house and My courts; for I have chosen him to be a son to Me, and I will be a father to him.
This is again using son as a way of denoting rank, specifically the rank of the king as being the highest among God's people. But this isn't to be taken physically and literally. In any case, David and Solomon were already alive by the time God declared them his "son."
Christianity has recognized that Jesus' title of God's "Son" is used quite differently, especially in light of John's gospel and his especially high Christology. Jesus is God's son in the same sense of David, Solomon and Israel, but also even more so and in a unique way, as John describes.
So if you're not distinguishing the different ways in which God's "son" is being used, then you're equivocating.