KJV Galatians 3: 16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one. And to thy seed, which is Christ.
28 There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus.
29 And if ye be Christ’s, then are ye Abraham’s seed, and heirs according to the promise.
Also Chapter 4