What does Jacob mean?
Jacob comes from the Hebrew Yaakov, linked to “heel” and read as “supplanter.” The patriarch Jacob’s twelve sons founded the tribes of Israel; the same name gives us James.
What does Matthew mean?
English form of the Hebrew name Mattityahu (Mattathias), from mattath 'gift' + yah, a short form of the divine name Yahweh. The structure is 'gift of God': 'gift' + the name of God.