We live διὰ τον Χρίστον (John 6:57), not merely διὰ τοῦ Χ, as if it was merely a means of living, but on account of Christ, because of Him, and hence according to what His life is derived from, as He lived διὰ τὸν π. It is not χάριν, but the continuous cause, only objectively so, for we eat this blessed food. The force seems to be the moral source of the character of what is produced: thus in Gal. 4:13, δἰἀσθενείαν,"in infirmity." Infirmity of the flesh was the moral source of the character of his preaching; as in Phil. 1:15, envy was the moral source of the character of the preaching for some, as goodwill was for others. So here the Father was the moral source of the character of Christ's life in the world, as Christ is of ours.