We Orthodox Christians believe in a Trinitarian God. God is not an isolated being, but communion and love. He is Father, Son and Holy Spirit; He is not one Person but three. Between the Father, Son and Holy Spirit there exists a pre-eternal communion of love. This does not imply, however, that we Christians believe in three Gods, but in One. There is but one divine essence and it is indivisible. This is why we speak of one God in Trinity. The unique source of the one divine essence is the Father. He it is who transmits pre-eternally, (icpoai-ωρίως) i.e. without beginning, existence to the Son through pre-eternal generation, and to the Holy Spirit, through pre-eternal procession.