In the ancient Middle East, the originator of a custom was frequently referred to as the “father” of that custom. Thus, Jubal was called” the father of all such as handle the harp and organ” because he invented those instruments.
The Messiah is called “the everlasting Father” (Isa 9:6), meaning He is the giver of eternal life. God is called “the Father of mercies” (2 Cor 1:3), “the Father of glory” (Eph 1:17), and “the Father of lights” (James 1:17).
The word children is also used in a similar way in the Bible (Mark 2:19).
1). Lot’s son Moob was the father of the Moabites (Gen 19:37).
2). Lot’s son Benammi was the father of the Ammonites (Gen 9:38).
3). Isaac’s son Esau was the father of the Edomites (Gen 36:9).
4). Joseph called himself a “father to Pharaoh” because he saved the Egyptian people from a famine through wise planning (Gen 45:8).
5). The Jewish people referred to Abraham as their father because of the covenant promise God made to him and his descendants (Gen 12:1-3; Luke 1:73).
GENESIS 4:21- Jubal. . .was the father of all such as handle the harp and organ [flute, NIV].