Luke 1:33-37

And he shall reign over the house of Jacob for ever; and of his kingdom there shall be no end.

Then said Mary unto the angel, How shall this be, seeing I know not a man?

And the angel answered and said unto her, The Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee: therefore also that holy thing which shall be born of thee shall be called the Son of God.

And, behold, thy cousin Elisabeth, she hath also conceived a son in her old age: and this is the sixth month with her, who was called barren.

For with God nothing shall be impossible.