For anthropologists and / or philosophers evil is the absence of good. And the light is the absence of darkness.
In that sense, one could say with certainty that hate is the lack of love, and then love would be the end of wickedness. Meanwhile, in the book of Ecclesiastes in the Old Testament of the Bible in its Chapter 3 and verse 1 affirm that (...) "Everything you want about the earth and all that is under heaven has its time" . In his verse 8 says "time to love and a time to hate; wartime and peacetime "While in his verse 9 insists on" What profit has the worker from that in which he toils? "And in his verse 15 emphasizes" what already was, and is; and what must be, it was already; and God restores what happened ".
So if everything passes, everything comes to an end, why we strive and we despair? Time we can not control, but if we are sure that everything has its cycle. There are many people who manage to overcome obstacles in their lives; illness, substance abuse, a life of internal or spiritual misery; and suddenly; voluntarily seeking help, they can not alone accepting that they need a fresh start something starts to change, with much faith, work and fighting themselves have a new life.
Precisely that kind of testimony, as known in the Gospel becomes a song; How to get "Sing Of Your Love" a confession of the glory of God, and Jesus who are self and have the same power of God, and that power is love.
When everything is believed lost, only expected in God and let Him work in our lives, meanwhile to show gratitude for what God will do, some artists may sing and praise God, but not just about singing, singing it is not everything, but give testimony of faith. Believe even though no human solution is, that is faith. A cure for hatred, even unknown to ourselves, that is faith.
And the answer of faith is love.
Personally I came to feel that "I will sing of your love" could be a grammatical error, but what is singing? You speak, from that point of view refers to "speak of your love"