It is, however, one thing for married persons to have intercourse only for the wish to beget children, which does not have guilt (culpam); it is another thing for them to desire carnal pleasure (carnis voluptatem) in intercourse (concumbendo), but with the spouse only, which has venial sin (venialem culpam).44 Yet even when children are created who are to become citizens of God’s Kingdom, and even when they are conceived in the bonds of the Christian sacrament of marriage, still, the inevitable concupiscence