63 The adorable Heart of Jesus Christ began to beat with a love at once human and divine after the Virgin Mary generously pronounced Her "Fiat"; and the Word of God, as the Apostle remarks: "coming into the world, saith, 'Sacrifice and oblation thou wouldst not; but a body thou hast fitted to Me; holocausts for sin did not please thee. Then said I, "Behold I come"; in the head of the book it is written of Me, "that I should do thy will, O God!"'. . .In which will we are sanctified by the oblation of the body of Jesus Christ once."(58)
Source: Haurietis Aquas (Vatican.va)