You can read in Genesis chapters 12 to 17 about God's covenant with Abraham, you can read later in Genesis about how the covenant was confirmed exclusively to Isaac and Jacob and Jacob's descendants, and you can read in Genesis chapter 17 how the covenant was an everlasting covenant. In other words, the promises God made via Abraham to the Jews still stand.
Back in Genesis 3, after Adam and Eve sinned, God made a promise. He told the serpent:
I will put enmity
Between you and the woman,
And between your seed and her Seed;
He shall bruise your head,
And you shall bruise his heel.
That's a promise of a Saviour.
From the time God made that promise, Satan did everything he knew to prevent that promise being fulfilled. He persuaded Cain to kill Abel in Genesis 4; he attempted to pollute man's seed in Genesis 6; he sought to prevent Abraham having a legitimate heir in Genesis 12 and Genesis 20; he had Pharaoh order the death of all male Hebrew children in Exodus 1; he sought to have all the children of Jehoram killed in 2 Chronicles 21; he sought to have all the children of Ahaziah killed in 2 Chronicles 22; he tried to have Haman kill all the Jews in the captivity in Esther 3; he had Herod kill all the young children in Bethlehem in Matthew 2; and he made serious attempts on Jesus' life in Luke 4, Mark 4 and Luke 8, not to mention trying to destroy Him at His passion.
There's more. But what I have said already will for some be a shock to the system. So enough for one blog post.
Except to say two things.
First, what I have said above has tremendous import for every Christian. Second, please don't take my word for it. Do look up the Scriptures for yourself.
