The condemnation of carnal generation, the work of the devil, entails a double obligation: to hate one's parents who brought one into the world, and not to procreate.
The first obligation is clearly proclaimed by Jesus in Lk 14.26: "Whoever does not hate father and mother, wife and children, [brothers and sisters, yes and even life itself], cannot be my disciple". The same statemes occurs in the Gospel of Thomas 55 and 101, whereas Mt 10.37 mitigates this requirement in two ways: "Who loves father or mother more than me is not worthy of me". So, therefore, if Jesus had had a mother and brothers, he should have hated them. Consequently, the mother and brothers enumerated by his fellow citizens in Nazareth with complacency marvelling at his doctrine (Mk 6.3) reappears not to be disowned but denied: "Who are my mother and Brothers? And looking at those who sat around him, he said here are my mothers and brothers" (Mk 3.31-35; plls).
The first obligation is clearly proclaimed by Jesus in Lk 14.26: "Whoever does not hate father and mother, wife and children, [brothers and sisters, yes and even life itself], cannot be my disciple". The same statemes occurs in the Gospel of Thomas 55 and 101, whereas Mt 10.37 mitigates this requirement in two ways: "Who loves father or mother more than me is not worthy of me". So, therefore, if Jesus had had a mother and brothers, he should have hated them. Consequently, the mother and brothers enumerated by his fellow citizens in Nazareth with complacency marvelling at his doctrine (Mk 6.3) reappears not to be disowned but denied: "Who are my mother and Brothers? And looking at those who sat around him, he said here are my mothers and brothers" (Mk 3.31-35; plls).
(Jean Magne, From Christianity to Gnosis and from Gnosis to Christianity, p. 210)
That great irony of the destiny, to know that this surprising Logion of Jesus is been interpreted even by the atheist Hector Avalos as evidence of the immorality of a historical Jesus, while Christian scholars have minimized this presumed immorality by introducing sociological (sic) reasons, etc.
To be sure, prof Avalos specified that the his criticism holds only if Jesus existed and he said that Logion.