All mankind are the spiritual offspring of God, and therefore, all are sons and daughters of God whether they have faith or not. However, in this passage, Mormon is making reference to the process of becoming a son or daughter of Christ. As king Benjamin taught, because of the covenant which ye have made ye shall be called the children of Christ, his sons, and his daughters; for behold, this day he hath spiritually begotten you; for ye say that your hearts are changed through faith on his name; therefore, ye are born of him and have become his sons and his daughters (Mosiah 5:7).