From a Christmas Sermon of Blessed Martin Luther

For, if it is true that the child was born of the virgin and is mine, then I have no angry God and I must know and feel that there is nothing but laughter and joy in the heart of the Father and no sadness in my heart. For, if what the angel says is true, then he is our Lord and Savior, what can sin do against us? "If God is for us, who is against us?" AE 51:216