For as Jonah was three days and three nights in the belly of the great fish; so shall the Son of man be three days and three nights in the heart of the earth.
All Commentaries on Matthew 12:40 Go To Matthew 12
Theodore the Stratelates
AD 319
Christ says he will spend “three days and three nights in the heart of the earth.” He is referring to the end of Friday, all of Saturday and the beginning of Sunday [of the passion week], in keeping with the way people understood the beginning and ending of days. For we too commemorate the third day of those who have died, not when three days and three nights, completed in equal measure, have gone by. But we reckon as a single, complete day that day on which the person died, regardless of what hour the death occurred. We count as another day that on which we take our leave of the departed in hymns before the tombs. Following this same kind of sequence, then, the Lord announced that he would spend a full three days and nights under the earth. A clear indication of this is the fact that the women arrived at that very time, in order to fulfill those things that the law prescribed to be done for the dead upon the third day.
