I had someone comment on a post I wrote about homosexuality, making the tired but nonetheless common non sequitur that, if one views same-sex relations as acceptable, then one must also embrace bestiality.
I found myself wondering whether the apostle Paul faced the same sort of ridiculous objection from his contemporaries. I can imagine his opponents saying, “Paul, if you allow uncircumcised men into the people of God, then you cannot logically exclude animals from it.”
The objection seems silly, doesn't it? Yet it might have seemed a natural one for ancient Jews with a nationalist bent to make. The Gentiles are often represented by animals in apocalyptic literature, and compared with beasts when casting aspersions on their morality.
And so I could well imagine someone in Paul's time suggesting that, if one picks and chooses as he did, and simply sets aside as clear a commandment as the one given to Abraham requiring that all males who are considered part of his household or family be circumcised, then one must logically consider all moral matters relative. One will have to embrace the inclusion of animals (presumably also uncircumcised) too.