“Now if it please you likewise to hear the mystical reason in this matter, we are commanded to keep Easter in the first month of the year, which is also called the month of new things, because we ought to celebrate the mysteries of our Lord’s Resurrection and our deliverance, with the spirit of our minds renewed to the love of heavenly things. We are commanded to keep it in the third week of the same month, because Christ Himself, who had been promised before the Law, and under the Law, came with grace, in the third age of the world, to be sacrificed as our Passover; and because rising from the dead the third day after the offering of His Passion, He wished this to be called the Lord’s day, and the Paschal feast of His Resurrection to be yearly celebrated on the same; because, also, we do then only truly celebrate His solemn festival, if we endeavour with Him to keep the Passover, that is, the passing from this world to the Father, by faith, hope, and charity. We are commanded to observe the full moon of the Paschal month after the vernal equinox, to the end, that the sun may first make the day longer than the night, and then the moon may show to the world her full orb of light; inasmuch as first ‘the Sun of righteousness, with healing in His wings,’(969) that is, our Lord Jesus, by the triumph of His Resurrection, dispelled all the darkness of death, and so ascending into Heaven, filled His Church, which is often signified by the name of the moon, with the light of inward grace, by sending down upon her His Spirit. Which order of our salvation the prophet had in his mind, when he said ‘The sun was exalted and the moon stood in her order.’(970)