Craig Keener writes, “Greek men were commonly bisexual; not only was homosexual behavior approved…but elements of the culture socialized boys in this direction. Men and women were segregated growing up, and male bonds became close. Apparently due to a deficiency in the number of women (which many attribute to female infanticide), marriages were often made between thirty-year-old men and fourteen-year-old women….Although many upper-classed Romans were affected by Greek ideals, many other Romans, especially Roman philosophers, regarded homosexual practice as disgusting. Greco-Roman moralists sometimes opposed gender reversal as ‘against nature,’ which would resemble the Jewish argument from God’s original purposes in creation…Although Jewish texts speak of Jewish adulterers and thieves, they nearly always treat homosexual behavior as a Gentile practice. Socialization clearly affected one’s sexual development.” Craig Keener, The IVP Background Commentary, New Testament, pp. 416-417.