The Greek language of the New Testament has three different words for love: agape, philia and eros.
Eros is the love of a person for another person. Its highest form is the attraction of a man for a woman. The symbol of eros is a man and a woman facing each other.
Philia is the love of a group of persons for each other. The city of brotherly love in the East Coast is named after this love. Its highest form is the unity of family members. The symbol of philia is persons side by side.
While eros and philia were widely used before Christ's time, agape was relatively unknown. Agape is the love of God for mankind. Its highest form is the God-man giving His life for enemy and friend. The symbol of agape is the cruxifix. Agapes fulfillment is the resurrection.