Friday, 20th Week in Ordinary Time
From: Matthew 22:34-40
The Greatest Commandment of All
 But when the Pharisees heard that He (Jesus) had silenced the Sadducees, they came together.  And one of them, a lawyer, asked Him a question, to test Him.  "Teacher, which is the greatest commandment in the law?"  And He said to him, "You shall love the Lord your God with all your heart, and with all your soul, and with all your mind.  This is the great and first commandment.  And a second is like it, You shall love your neighbor as yourself.  On these two commandments depend all the law and the prophets."
34-40. In reply to the question, our Lord points out that the whole law can be condensed into two commandments: the first and more important consists in unconditional love of God; the second is a consequence and result of the first, because when man is loved, St. Thomas says, God is loved, for man is the image of God (cf. "Commentary on St. Matthew", 22:4).
A person who genuinely loves God also loves his fellows because he realizes that they are his brothers and sisters, children of the same Father, redeemed by the same blood of our Lord Jesus Christ: "this commandment we have from Him, that he who loves God should love his brother also" (1 John 4:21). However, if we love man for man's sake without reference to God, this love will become an obstacle in the way of keeping the first commandment, and then it is no longer genuine love of our neighbor. But love of our neighbor for God's sake is clear proof that we love God: "If anyone says, `I love God', but hates his brother, he is a liar" (1 John 4:20).
"You shall love your neighbor as yourself": here our Lord establishes as the guideline for our love of neighbor the love each of us has for himself; both love of others and love of self are based on love of God. Hence, in some cases it can happen that God requires us to put our neighbor's need before our own; in others, not: it depends on what value, in the light of God's love, needs to be put on the spiritual and material factors involved.
Obviously spiritual goods take absolute precedence over material ones, even over life itself. Therefore, spiritual goods, be they our own or our neighbor's, must be the first to be safeguarded. If the spiritual good in question is the supreme one of the salvation of the soul, no one is justified in putting his own soul into certain danger of being condemned in order to save another, because given human freedom we can never be absolutely sure what personal choice another person may make: this is the situation in the parable (cf. Matthew 25:1-13), where the wise virgins refuse to give oil to the foolish ones; similarly St. Paul says that he would wish himself to be rejected if that could save his brothers (cf. Romans 9:3)--an unreal theoretical situation. However, what is quite clear is that we have to do all we can to save our brothers, conscious that, if someone helps to bring a sinner back to the Way, he will save himself from eternal death and cover a multitude of his own sins (James 5:20). From all this we can deduce that self-love of the right kind, based on God's love for man, necessarily involves forgetting oneself in order to love God and our neighbor for God.
37-38. The commandment of love is the most important commandment because by obeying it man attains his own perfection (cf. Colossians 3:14). "The more a soul loves," St. John of the Cross writes, "the more perfect is it in that which it loves; therefore this soul that is now perfect is wholly love, if it may thus be expressed, and all its actions are love and it employs all its faculties and possessions in loving, giving all that it has, like the wise merchant, for this treasure of love which it has found hidden in God [...]. For, even as the bee extracts from all plants the honey that is in them, and has no use for them for aught else save for that purpose, even so the soul with great facility extracts the sweetness of love that is in all the things that pass through it; it loves God in each of them, whether pleasant or unpleasant; and being, as it is, informed and protected by love, it has neither feeling nor taste nor knowledge of such things, for, as we have said, the soul knows naught but love, and its pleasure in all things and occupations is ever, as we have said, the delight of the love of God" ("Spiritual Canticle", Stanza 27, 8).
Source: "The Navarre Bible: Text and Commentaries". Biblical text taken from the Revised Standard Version and New Vulgate. Commentaries made by members of the Faculty of Theology of the University of Navarre, Spain. Published by Four Courts Press, Kill Lane, Blackrock, Co. Dublin, Ireland. Reprinted with permission from Four Courts Press and Scepter Publishers, the U.S. publisher.