... at the beginning of the human race the woman was made of a rib taken from the side of the man while he slept; for it seemed fit that even then Christ and His Church should be foreshadowed in this event. For that sleep of the man was the death of Christ, whose side, as He hung lifeless upon the Cross, was pierced with a spear, and there flowed from it blood and water, and these we know to be the sacraments by which the Church is built up.
Saint AugustineIt is indeed better (as no one ever could deny) that men should be led to worship God by teaching, than that they should be driven to it by fear of punishment or pain; but it does not follow that because the former course produces the better men, therefore those who do not yield to it should be neglected. For many have found advantage (as we have proved, and are daily proving by actual experiment), in being first compelled by fear or pain, so that they might afterwards be influenced by teaching, or might follow out in act what they had already learned in word.
Saint AugustineWhat is more insane than to be partakers of the Sacraments of the Lord and not partakers of the words of the Lord? These men truly have to say: "In Thy Name we have eaten and drunk," and they will have to hear: "I do not know you!" (Luke 13:26-27). They eat and drink His Body and Blood in the Sacrament and do not recognize in the Gospel His members spread over the whole world, and for this reason they are not numbered among them at the Judgment.
Saint Augustine