"The catholic reason of this observance being thus explained; the unreasonable error, on the other hand, of those who, without any necessity, presume either to anticipate, or to go beyond the term prescribed in the Law, is manifest. For they that think the Lord's day of Easter is to be observed from the fourteenth day of the first month till the twentieth moon, anticipate the time prescribed in the Law, without any necessary reason; for when they begin to celebrate the vigil of the holy night from the evening of the thirteenth day, it is plain that they make that day the beginning of their Easter, whereof they find no mention in the Law; and when they refuse to celebrate our Lord's Easter on the one-and-twentieth day of the month, they wholly exclude that day from their solemnity, which the Law often recommends as memorable for the greater festival; and thus, perverting the proper order, they place Easter day in the second week, and sometimes keep it entirely in the same, and never bring it to the seventh day of the third week. And again, because they rather think that Easter is to be kept on the sixteenth day of the said month, and so to the two-and-twentieth, they no less erroneously, though the contrary way, deviate from the right way of truth, and as it were avoiding to be shipwrecked on Scylla, they run on and are drowned in the whirlpool of Charybdis. For when they teach that Easter is to be begun at the rising of the sixteenth moon of the first month, that is, from the evening of the fifteenth day, it is manifest that they altogether exclude from their solemnity the fourteenth day of the same month, which the Law firstly and chiefly recommends; so that they scarcely touch upon the evening of the fifteenth day, on which the people of God were delivered from the Egyptian servitude, and on which our Lord, by his blood, rescued the world from the darkness of sin, and on which being also buried, He gave us hopes of a blessed repose after death.
"And the same persons, taking upon themselves the penalty of their error, when they place the Lord's day of Easter on the twenty-second day of the month, openly transgress and exceed the legal term of Easter, as beginning the Easter on the evening of that day in which the law appointed it to be finished and completed; and appoint that to be the first day of Easter, whereof no mention is anywhere found in the Law, viz. the first of the fourth
