In our case, murder being once for all forbidden, we may not destroy even the foetus in the womb, while as yet the human being derives blood from other parts of the body for its sustenance. To hinder a birth is merely a speedier mankilling; nor does it matter whether you take away a life that is born, or destroy one that is coming to the birth. That is a man which is going to be one; you have the fruit already in the seed.
TertullianIt is not consistent with truth that a man should sacrifice half of his stomach only to God-that he should be sober in drinking, but intemperate in eating. Your belly is your God, your liver is your temple, your paunch is your altar, the cook is your priest, and the fat steam is your Holy Spirit; the seasonings and the sauces are your chrisms, and your belchings are your prophesizing...[such] a grossly- feeding Christian is akin to lions and wolves rather than God. Our Lord Jesus called Himself Truth and not habit.
TertullianBut now inquiry is being made concerning these issues. First, can any believer enlist in the military? Second, can any soldier, even those of the rank and file or lesser grades who neither engage in pagan sacrifices nor capital punishment, be admitted into the church? No on both counts.
Tertullian