My pastor gave a sermon about how many words for love there are in Greek. He talked about agape, eros, and storge (I think it was storge, or something like it and how they're used in the Bible. Storge is similar to the type of love used in verses like Love your neighbor as yourself, brotherly love. Eros the type of love in Song of Solomon (not the exact word because Song of Solomon wasn't written in Greek, but the same idea). And Agape is used to describe the way Christ loves the church.