Originally posted by @odbod
A definition of love is highly problematic to say the least.That said,which do you consider to be the most valuable,love given because of faith in another person or god,or love given without any expectation?
Jesus was asked what the greatest commandment was. He said to love your neighbor as yourself and to love the Lord your God will all your heart.
Then someone asked, "Who is my neighbor?"
Jesus answered with a parable of the Good Samaritan. In the parable a man lie dying on the side of the road out cold. People who pass by are those you would assume would want to help the man such as a priest and other people of high social ranking. However, they just ignore him. Then a Samaritan passed by, which is noteworthy because they were natural enemies of those who lived in Judea. However, he inexplicably stops anyway to help the man and takes him to an inn and pays someone to nurse him back to health.
The story was powerful because it drove home the idea that love has nothing really to do with emotion. Here is a stranger that should have hated the man that lay dying, but he took compassion on him any way. No words were exchanged so there was no possibility of even liking him in anyway.
This type of love is called agape in Greek. It is based on the presumption that we are all made in the image of God and should be treated with dignity and respect, even if they hate us or if we don't even like them.
From other points of view, such as an atheist, we are not made in the image of God. Instead, we are nothing more than glorified animals. This is problematic because what do we do to animals? We keep them as pets, hunt them, use them as beasts of burden, or kill and eat them. This type of world view in my estimation leads to mistreatment of other human beings due to not revering man because he is made in the image of God.
As for a definition of love, Paul does a decent job in 1 Corinthians 13.
1 Corinthians 13New International Version (NIV)
13 If I speak in the tongues[a] of men or of angels, but do not have love, I am only a resounding gong or a clanging cymbal. 2 If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but do not have love, I am nothing. 3 If I give all I possess to the poor and give over my body to hardship that I may boast,[b] but do not have love, I gain nothing.
4 Love is patient, love is kind. It does not envy, it does not boast, it is not proud. 5 It does not dishonor others, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. 6 Love does not delight in evil but rejoices with the truth. 7 It always protects, always trusts, always hopes, always perseveres.
8 Love never fails. But where there are prophecies, they will cease; where there are tongues, they will be stilled; where there is knowledge, it will pass away. 9 For we know in part and we prophesy in part, 10 but when completeness comes, what is in part disappears. 11 When I was a child, I talked like a child, I thought like a child, I reasoned like a child. When I became a man, I put the ways of childhood behind me. 12 For now we see only a reflection as in a mirror; then we shall see face to face. Now I know in part; then I shall know fully, even as I am fully known.
13 And now these three remain: faith, hope and love. But the greatest of these is love.