The covenant promises that God gave to Abraham were passed on to Isaac, then to Jacob, and then to Jacob’s 12 sons and their families

All the descendants of Jacob would receive the land and blessings that God promised to Abraham and Isaac (See: 05:03, 06:04, 07:10).

the 12 tribes of Israel

God changed Jacob’s name to Israel. Therefore, the descendants of his 12 sons were called the 12 tribes of Israel.