For I do not [really] understand what I am doing; I practice what I do not want to and I hate what I do. [Note: This highly controversial section (verses 14b-25) is here viewed as the struggles of the apostle Paul after his conversion, and by extension, of all Christians. See Bruce, pages 150ff; Murray, pages 255ff; Lard, pages 236ff].

By [having] faith, Sarah herself received the ability to have children, even though she was [sterile, being] past the age of child-bearing, since she considered God faithful to His promise. [Note: Some translations consider "Abraham" to be the subject of this highly controversial verse. See Lightfoot, pages 222-225].