What I command you is to love one another
Jesus said to his disciples:
‘This is my commandment:
love one another,
as I have loved you.
A man can have no greater love
than to lay down his life for his friends.
You are my friends,
if you do what I command you.
I shall not call you servants any more,
because a servant does not know
his master’s business;
I call you friends,
because I have made known to you
everything I have learnt from my Father.
You did not choose me:
no, I chose you;
and I commissioned you
to go out and to bear fruit,
fruit that will last;
and then the Father will give you
anything you ask him in my name.
What I command you is to love one another.’
The New American Bible
The Catechism of the Catholic Church
WHY DID THE WORD BECOME FLESH?
456 With the Nicene Creed, we answer by confessing: “For us men and for our salvation he came down from heaven; by the power of the Holy Spirit, he became incarnate of the Virgin Mary, and was made man.”
457 The Word became flesh for us in order to save us by reconciling us with God, who “loved us and sent his Son to be the expiation for our sins”: “the Father has sent his Son as the Savior of the world”, and “he was revealed to take away sins”:
Sick, our nature demanded to be healed; fallen, to be raised up; dead, to rise again. We had lost the possession of the good; it was necessary for it to be given back to us. Closed in the darkness, it was necessary to bring us the light; captives, we awaited a Savior; prisoners, help; slaves, a liberator. Are these things minor or insignificant? Did they not move God to descend to human nature and visit it, since humanity was in so miserable and unhappy a state?
458 The Word became flesh so that thus we might know God’s love: “In this the love of God was made manifest among us, that God sent his only Son into the world, so that we might live through him.” “For God so loved the world that he gave his only Son, that whoever believes in him should not perish but have eternal life.”
459 The Word became flesh to be our model of holiness: “Take my yoke upon you, and learn from me.” “I am the way, and the truth, and the life; no one comes to the Father, but by me.” On the mountain of the Transfiguration, the Father commands: “Listen to him!” Jesus is the model for the Beatitudes and the norm of the new law: “Love one another as I have loved you.” This love implies an effective offering of oneself, after his example.
460 The Word became flesh to make us “partakers of the divine nature”:78 “For this is why the Word became man, and the Son of God became the Son of man: so that man, by entering into communion with the Word and thus receiving divine sonship, might become a son of God.” “For the Son of God became man so that we might become God.” “The only-begotten Son of God, wanting to make us sharers in his divinity, assumed our nature, so that he, made man, might make men gods.”
For the director. According to Yonath elem rehoqim. A miktam of David, when the Philistines seized him at Gath.
Have mercy on me, God, for I am treated harshly; attackers press me all the day.
My foes treat me harshly all the day; yes, many are my attackers. O Most High,
when I am afraid, in you I place my trust.
God, I praise your promise; in you I trust, I do not fear. What can mere flesh do to me?
All the day they foil my plans; their every thought is of evil against me.
They hide together in ambush; they watch my every step; they lie in wait for my life.
They are evil; watch them, God! Cast the nations down in your anger!
My wanderings you have noted; are my tears not stored in your vial, recorded in your book?
My foes turn back when I call on you. This I know: God is on my side.
God, I praise your promise;
in you I trust, I do not fear. What can mere mortals do to me?
I have made vows to you, God; with offerings I will fulfill them,
Once you have snatched me from death, kept my feet from stumbling, That I may walk before God in the light of the living.
Source: The New American Bible