Galatians 3:14-16

14in order that through Messiah Yeshua the blessing of Abraham might come to the Gentiles, so we might receive the promise of the Ruach through trusting faith.

15Brothers and sisters, I speak in human terms: even with a man’s covenant, once it has been confirmed, no one cancels it or adds to it.

16Now the promises were spoken to Abraham and to his seed. It doesn’t say, “and to seeds,” as of many, but as of one, “and to your seed,” who is the Messiah.