And there will be war between you and the woman and between your seed and her seed: by him will your head be crushed and by you his foot will be wounded.
For this cause the Lord himself will give you a sign; a young woman is now with child, and she will give birth to a son, and she will give him the name Immanuel.
Now the birth of Jesus Christ was in this way: when his mother Mary was going to be married to Joseph, before they came together the discovery was made that she was with child by the Holy Spirit.