The Holy Spirit is referred to as "the Lord, the Giver of Life" in the Nicene Creed, which summarises several key beliefs held by many Christian denominations. The participation of the Holy Spirit in the tripartite nature of conversion is apparent in Jesus' final post-resurrection instruction to his disciples at the end of the Gospel of Matthew (28:19): "make disciples of all the nations, baptizing them into the name of the Father and of the Son and of the Holy Spirit," and "For where two or three are gathered together in my name, there am I in the midst of them."[14] Since the first century, Christians have also called upon God with the trinitarian formula "Father, Son and Holy Spirit" in prayer, absolution and benediction.[15][16]