“Jacob” is a name found in Jesus’ genealogy.  This name describes both Isaac (Mt.1:2) and the son of Matthan (Mt. 1:15).  In Rom. 11:26, Paul described the nation of Israel with this name. Of course, this name is found in several other texts like Mk. 12:26; Lk. 3:34; Jn. 4:5; Acts 3:13; Rom. 9:13; Heb. 11:9, 20-21.