And he knew her not, yet she bore her son, the firstborn. And he called his name JESUS
Other versions
King James Version
And knew her not till she had brought forth her firstborn son: and he called his name JESUS.English Standard Version
but knew her not until she had given birth to a son. And he called his name Jesus.New International Version
But he had no union with her until she gave birth to a son. And he gave him the name Jesus.