Hint: From Shem to Abram. Genesis 11:10-32
This is Genesis 3:15 being carried out to Genesis 12, 15, 17.
See too, Matthew 1.
Acts 2, is Genesis 12, and is Romans 1:16.
Covenant isn't Co-extensive with Election, the Abrahamic Covenant isn't Co-extensive with Election, the New Covenant isn't co-extensive with election.