The brothers must really love each other, considerate towards each other wisely, in reciprocal communion and sharing their own things, comforting softly, being understood carefully, using solidarity, defending each other with courage: these are in fact works as brothers.
Invitation to charity
One of the things that are pleasing to God is, in fact, the "harmony of the brothers" (Sir 25,1). This expresses, in excellent fit, what is "good and pleasant it is when brothers live together"
In this regard, Jerome wrote: "brothers here are understood in the spiritual sense, no carnal brothers in spirit, not in the body. For the brothers according to the flesh to live together is very often a source of discord". To these brothers, the apostle Paul recommends: "Lead a life worthy of the calling you have received", that is, because you are brothers. He continues: "With all humility, meekness and patience, forbearing one another in love, eager to maintain the unity of the Spirit through the bond of peace. There is one body and one Spirit, just as one is the hope to which you were called, of your calling".
Commenting on these words, St. Gregory writes: "In no way do we come to the hope of the calling, if you do not run it with the soul united to the neighbor". Charity is indeed the bond of perfection, that the apostle Paul urges to have above all else (cf.. Col 3:14). And in the epistle to the Philippians says: "Make my joy complete by being of a single mind, one in love, with the same sentiments. Do nothing from rivalry or conceit, but each of you, with all humility, consider others better than yourselves. Not each one seek his own interest, but also that of others".
Therefore, God hates greatly those who spread lies and sows discord among brothers. He, in fact tearing the tunic of Christ that the same executioners daidnot divide. Why St. Augustine writes: "There can be no obstacle in the one who loves his brother, for he who loves his brother endures all things to safeguard the unity: the unity of charity is the greatest love. Remember Psalm (118.165 ): "Great peace have those who love your name. Where charity, there is peace. "And St. Jerome, commenting on the same verse of the Psalm", Great peace have those who love your name and there is no stumbling block for him, "he writes: "Those who love God must necessarily live at peace with the brothers; in fact, he would love God deceptively who was an obstacle to his brother".
From this fact we recognize Christ's disciples, if you have love for one another. Christ has repeatedly stressed the importance of love. And in the First Epistle of John we read: "From him we have this commandment: whoever loves God must also love his brother".
This brotherly love was burning when Paul in his second letter to the Corinthians he wrote: "Who is weak, and I am not either? Who suffers scandal, which I am not indignant?". He became all things to all to gain all to Christ; He wanted their all and was consumed generously for the salvation of others.
He was willing even to become accursed from Christ for the sake of the brethren. However, this is not to be understood in an absolute sense, but only in relative terms, as it is feasible. So the same apostle writes: "Those who want to be imitators of God, as beloved children, must walk in love, as Christ loved us and gave himself up for us". To save your brother, you should not fear any risk or danger to your body. In this regard, John writes: "By this we know God's love that he laid down his life for us: and we ought to lay down our lives for our brothers".
(1 Jn 3,16).
"A friend wants always well, was born to be a brother in misfortune", says the book of Proverbs. And St. Augustine points out: "Another man should be loved more than our body".
All Scripture, both the Old Testament and the New, stimulates you to the love of God and neighbor so much with words than with testimonials. "This, in fact, is the first and greatest commandment, from which hang all the law and the prophets: You shall love the Lord your God with all your heart, with all your soul, with all your strength; you shall love your neighbor as yourself same". A fact that mandate stems from the natural law. Thus says the Lord: "Whatever you wish that men would do to you, do ye even so to them: for this is the law and the prophets".
With regard to the text of Sirach "poses in front of their science and their inheritance the law of life", a gloss of Rabanus says: "The written law was made to supplement the natural law. This insinuate the law of the letter and the law of nature, namely, that we must love God with all your heart, with all your soul, that is, that we must love God with all your heart, with all your soul, with all your strength, and that we must keep the divine commandments in love of God and neighbor. "And for this reason that the biblical text continues: "He said to them: Beware of all unrighteousness! And gave each precepts of neighbor".
You must therefore accept your neighbor and your brothers, that they carry the image of God, who with you a Father in heaven. For Christ died for all men without preference for people and everyone has redeemed enough without exclusions. Therefore, over the passage from Leviticus: "You shall love your neighbor as yourself", says the Gloss: "The next one is not to be understood by the ties of blood, but for the union of the minds". And Augustine says: "Every man, as indeed human being should be loved for God's sake".