“O wondrous interchange! The Creator of mankind, taking upon him a living body, vouchsafed to be born of a Virgin; and proceeding forth as Man, without seed, hath made us partakers of his Divinity.”
I have always loved this antiphon on the Psalms, used during Christmastide, which I know from The Prayer Book Office (1963), edited by Paul Hartzell and published in 1963 by Morehouse-Barlow. It has always seemed to me to sum up so memorably the mystery of the Incarnation.