The contrast
Love is what can heal the world. Love is what can heal wounded hearts and mend damaged lives. Love is what can heal you. Whether showing Love or being at the receiving end, it leaves everyone better. The power of Love is awesome. But remember, it is God's kind of love; pure, unpretentious and non-exploitative.
Paul begins by contrasting Love with other things that men in those days thought much of. I shall not attempt to go over those things in detail. Their inferiority is already obvious.
He contrasts it with eloquence. And what a noble gift it is, the power of playing upon the souls and wills of men, and rousing them to lofty purposes and holy deeds. Paul says, "If I speak with the tongues of men and of angels, and have not love, I am become as sounding brass, or a tinkling cymbal." And we all know why. We have all felt the brazenness of words without emotion, the hollowness, the unaccountable unpersuasiveness, of eloquence behind which lies no Love.