Now the Promises were made to Abraham and to his offspring; it is not said, 'and to your offsprings' in the plural, but in the singular and to your offspring — which is Christ.
The birth of [Jesus] Christ came about thus. His mother Mary was betrothed to Joseph, but before they came together she was discovered to be pregnant by the holy Spirit.
The promise made to Abraham and his offspring that he should inherit the world, did not reach him through the Law, but through the righteousness of faith.
Now when Jesus had been baptized, the moment he rose out of the water, the heavens opened and he saw the Spirit of God coming down like a dove upon him.