Abraham:

Father of the Faithful

In the Old Testament, Abraham is regarded as the head of the covenant line, which is personified in the house of Israel. He is often called the “father of the faithful.” Abraham received the gospel through baptism, or the covenant of salvation. The higher priesthood was conferred upon him, and he entered into celestial marriage, the covenant of exaltation, gaining assurance that he would have eternal increase. He received a promise that these same blessings would be offered to his mortal posterity. The divine promises to Abraham assured that Christ would come through his lineage and that Abraham’s posterity would receive certain lands as an eternal inheritance. These promises are called the Abrahamic covenant.

Heavenly Father’s children who are of non-Israelite lineage can be adopted into the house of Israel, becoming heirs of the covenant and the seed of Abraham through the ordinances of the gospel. (See Bible Dictionary, “Abraham,” 601; and “Abraham, Covenant of,” 602.)