O What A Mystery by Graham Kendrick from The Gift (Make Way For Christmas)
http://grahamkendrick.co.uk/songs/item/147
O what a mystery I see
What marvellous design
That God should come as one of us
A Son in David's line
Flesh of our flesh, of woman born
Our humanness he owns
And for a world of wickedness
His guiltless blood atones
The Gift is more than a seasonal listening experience, it has become firmly established as the basis for numerous joyful Christmas events, indoors or outdoors and is widely used as a kind of 'Christmas party for Jesus'.
A resource of seasonal songs to help build bridges to those for whom the Christmas story has little relevance today.
Originally released in 1988, The Gift is now available as a double CD with Rumours of Angels