12 We begin the fast of forty days on the nineteenth of the month Mechir (Feb. 13); and the holy Easter-fast on the twenty-fourth of the month Phamenoth (March 20). We cease from the fast on the twenty-ninth of the month Phamenoth (March 25), late in the evening of the seventh day. And we thus keep the feast on the first day of the week which dawns on the thirtieth of the month Phamenoth (March 26); from which, to Pentecost, we keep holy-day, through seven weeks, one after the other. For when we have first meditated properly on these things, we shall attain to be counted worthy of those which are eternal, through Christ Jesus our Lord, through Whom to the Father be glory and dominion for ever and ever. Amen. Greet one another with a holy kiss, remembering us in your holy prayers. All the brethren who are with me salute you, at all times remembering you. And I pray that you may have health in the Lord, my beloved brethren, whom we love above all.
Here ends the tenth Letter of holy Athanasius.
Source: Letters (New Advent)