1 John 4:7-10
Beloved, let us love one another,
because love is of God;
everyone who loves is begotten by God and knows God.
Whoever is without love does not know God, for God is love.
In this way the love of God was revealed to us:
God sent his only-begotten Son into the world
so that we might have life through him.
In this is love:
not that we have loved God, but that he loved us
and sent his Son as expiation for our sins.
because love is of God;
everyone who loves is begotten by God and knows God.
Whoever is without love does not know God, for God is love.
In this way the love of God was revealed to us:
God sent his only-begotten Son into the world
so that we might have life through him.
In this is love:
not that we have loved God, but that he loved us
and sent his Son as expiation for our sins.
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As St. John says here, love ultimately comes from God. We can show our love for God, though, by loving one another. By doing that, we are allowing Him to work through us.
The Catholic Church identifies Love (ie, "Charity") as a theological virtue -- which means that the virtue comes directly from God. Somewhere along the line in the english language, the word "charity" has morphed into an act of giving or an organization that you give to. However, when the Church discusses Charity, it means this theological virtue. Here's what the Catechism says:
Charity
1822 Charity is the theological virtue by which we love God above all things for his own sake, and our neighbor as ourselves for the love of God.
1823 Jesus makes charity the new commandment.96 By loving his own "to the end,"97 he makes manifest the Father's love which he receives. By loving one another, the disciples imitate the love of Jesus which they themselves receive. Whence Jesus says: "As the Father has loved me, so have I loved you; abide in my love." And again: "This is my commandment, that you love one another as I have loved you."98
1824 Fruit of the Spirit and fullness of the Law, charity keeps the commandments of God and his Christ: "Abide in my love. If you keep my commandments, you will abide in my love."99
1825 Christ died out of love for us, while we were still "enemies."100 The Lord asks us to love as he does, even our enemies, to make ourselves the neighbor of those farthest away, and to love children and the poor as Christ himself.101
1827 The practice of all the virtues is animated and inspired by charity, which "binds everything together in perfect harmony";105 it is the form of the virtues; it articulates and orders them among themselves; it is the source and the goal of their Christian practice. Charity upholds and purifies our human ability to love, and raises it to the supernatural perfection of divine love.
1828 The practice of the moral life animated by charity gives to the Christian the spiritual freedom of the children of God. He no longer stands before God as a slave, in servile fear, or as a mercenary looking for wages, but as a son responding to the love of him who "first loved us":106
1822 Charity is the theological virtue by which we love God above all things for his own sake, and our neighbor as ourselves for the love of God.
1823 Jesus makes charity the new commandment.96 By loving his own "to the end,"97 he makes manifest the Father's love which he receives. By loving one another, the disciples imitate the love of Jesus which they themselves receive. Whence Jesus says: "As the Father has loved me, so have I loved you; abide in my love." And again: "This is my commandment, that you love one another as I have loved you."98
1824 Fruit of the Spirit and fullness of the Law, charity keeps the commandments of God and his Christ: "Abide in my love. If you keep my commandments, you will abide in my love."99
1825 Christ died out of love for us, while we were still "enemies."100 The Lord asks us to love as he does, even our enemies, to make ourselves the neighbor of those farthest away, and to love children and the poor as Christ himself.101
- The Apostle Paul has given an incomparable depiction of charity: "charity is patient and kind, charity is not jealous or boastful; it is not arrogant or rude. Charity does not insist on its own way; it is not irritable or resentful; it does not rejoice at wrong, but rejoices in the right. Charity bears all things, believes all things, hopes all things, endures all things."102
1827 The practice of all the virtues is animated and inspired by charity, which "binds everything together in perfect harmony";105 it is the form of the virtues; it articulates and orders them among themselves; it is the source and the goal of their Christian practice. Charity upholds and purifies our human ability to love, and raises it to the supernatural perfection of divine love.
1828 The practice of the moral life animated by charity gives to the Christian the spiritual freedom of the children of God. He no longer stands before God as a slave, in servile fear, or as a mercenary looking for wages, but as a son responding to the love of him who "first loved us":106
- If we turn away from evil out of fear of punishment, we are in the position of slaves. If we pursue the enticement of wages, . . . we resemble mercenaries. Finally if we obey for the sake of the good itself and out of love for him who commands . . . we are in the position of children.107