Let All Mortal Flesh Keep Silence by Liturgy of St. James PICARDY—French Melody, 17th century Let All Mortal Flesh Keep Silence 1 Let all mortal flesh keep silence, And with fear and trembling stand; Ponder nothing earthly minded, For with blessing in his hand Christ our God to earth descendeth, Our full homage to demand. 2 King of kings, yet born of Mary, As of old on earth he stood, Lord of Lords in human vesture, In the body and the blood He will give to all the faithful His own self for