An Old Testament patriarch. His birth to Abraham and Sarah in their old age was a miracle (Gen. 15:4–6; 17:15–21; 21:1–8). Abraham’s willingness to offer Isaac was a similitude of God and his Only Begotten Son (Jacob 4:5). Isaac was heir to the promises of the Abrahamic covenant (Gen. 21:9–12; 1 Ne. 17:40; D&C 27:10).