Eleven of Jacob's sons were born in Genesis 29:32 to 30:20. The twelfth was born in Genesis 35:16-18.
Prior to Joseph relocating his family to Goshen, Jacob and his family were shepherds in central Canaan.
Gad was one of the twelve sons of Jacob. The descendants of each of Jacob's sons became a tribe within the nation of Israel.
I believe it was Jacob/Isreal who had Twelve sons.
It is Jacob.
Reveal from the twelve sons of Jacob, by Jacob's last words to his twelve sons in Genesis 49:
There is a story of Jacob in Genesis 37:3-4, where Jacob gives a tunic ( coat, cape ?)of many colors to Joseph, one of his twelve sons.
Twelve.
Tradition holds that they originated from the 12 sons of Jacob (later called Israel).The Israelite twelve tribes were the descendants of Jacob's twelve sons (Genesis ch.46).Tradition holds that they originated from the 12 sons of Jacob (later called Israel).
Abraham and Sarah had Isaac. Issac and Rebecca had Jacob. Jacob had twelve sons, who became the heads of the twelve tribes of Israel. Their descendants became known as the 'Jews' (Hebrews, Nation of Israel).
The nation of Israel is named after the biblical character Jacob, whose name was changed to Israel by God in the Book of Genesis. Israel is considered one of the founding fathers of the Israelite people.
Jacobs 12 sons represent the 12 tribes of Isa real.
Genesis 35:22-26 - Now the sons of Jacob were twelve: the sons of Leah were Reuben, Jacob's firstborn, and Simeon, Levi, Judah, Issachar, and Zebulun; the sons of Rachel were Joseph and Benjamin; the sons of Bilhah, Rachel's maidservant, were Dan and Naphtali; and the sons of Zilpah, Leah's maidservant, were Gad and Asher. These were the sons of Jacob who were born to him in Padan Aram. [NKJV]
It is in the Bible. Book of Genesis.