“Let us note straight away that the Greek Old Testament uses the word eros only twice, while the New Testament does not use it at all: of the three Greek words for love, eros, philia (the love of friendship) and agape, New Testament writers prefer the last, which occurs rather infrequently in Greek usage.”
Source: Pope Benedict XVI, God is Love: Deus Caritas Est, Ignatius Press, 2006.