34 The Sun was darkened, because of the Sun of Righteousness. Rocks were rent, because of the spiritual Rock. Tombs were opened, and the dead arose, because of Him who was free among the dead; He sent forth His prisoners out of the pit wherein is no water. Be not then ashamed of the Crucified, but be also bold to say, He bears our sins, and endures grief for us, and with His stripes we are healed. Let us not be unthankful to our Benefactor. And again; for the transgression of my people was He led to death; and I will give the wicked for His burial, and the rich for His death. Therefore Paul says plainly, that Christ died for our sins according to the Scriptures, and that He was buried, and that He has risen again the third day according to the Scriptures.
Source: Catechetical Lectures (New Advent)