Two times He point out the reasons of our veneration of Mary:
My mother and my brethren are they who hear the word of God, and do it (Luke 8:21, similar Matthew 12, Mark 3)Blessed is the womb that bore thee, and the paps that gave thee suck. But he said: Yea rather, blessed are they who hear the word of God, and keep it. (Luke 11:27-28)
Mary is to be venerated not for her physiological motherhood, but for her hearing the command of God and keeping the incarnate Word in her womb. We, men and women, can all follow the pattern she established and be sanctified with her. These alone would be sufficient scriptural basis of Marian devotions.
Than, in 628, I clarified in response to your follow up about men not having babies:
Exactly; but men can "hear the words of God and keep it" (Luke 11:28). This is the reason Jesus made his comments on venerating Our Lady: one does not have to be a woman to be a saint.
Mark 3:32 And the multitude sat about him, and they said unto him, Behold, thy mother and thy brethren without seek for thee.
Mark 3:33 And he answered them, saying, Who is my mother, or my brethren?
Mark 3:34 And he looked round about on them which sat about him, and said, Behold my mother and my brethren!
Mark 3:35 For whosoever shall do the will of God, the same is my brother, and my sister, and mother.
How you possible can spin this into veneration for Mary, I can't figure out.
Wouldn't you expect, should your interpretation be the case, that Jesus would have sought out His mother and brother, since they were right there, once the multitude pointed out they sought Him?
But no, He made no move to do this, saying those around Him were His mother and brethren. Then He actually says that anyone who does the will of God is His mother (siblings).
How much much clearer can this get?
Luke 11:27 And it came to pass, as he spake these things, a certain woman of the company lifted up her voice, and said unto him, Blessed is the womb that bare thee, and the paps which thou hast sucked.
Luke 11:28 But he said, Yea rather, blessed are they that hear the word of God, and keep it.
Here is a woman that attempt to venerate Mary for giving birth to Jesus. But He said. . . Obviously the expected response would be to agree and bless His mother, the "but" means He gave an unexpected response, i.e. to downplay any special spiritual allocation to His mother and spread out the "veneration" to all those who hear the word of God.
I've opined this before and I'll do so again. The Catholic interpretation of passages like these are clearly of a process: make the policy to be disseminated to the flock first, then find some Biblical passage that can possibly be spun to support it.
Nobody reads these passages and comes away with the meaning the church places on them without prior conditioning.