St. Paul had a couple of statements in the New Testament that deal with limited reasons for divorce. Sterility is not one. Impotence is not one either, but I think @Emperor Constantine is saying that this would be a reason not to allow a marriage? I'm not exactly sure what the Catholic or Orthodox position on that is. I remember reading that the Puritans in early New England allowed impotence as grounds for divorce. Some would have argued that marriage was a secular institution and none of the churches business, but others justified such divorce from the Biblical command that a married person's body belongs as much to their partner as themselves. I think they would have been outliers in Christian history on that position.