If taken literally, the only requisite is charity towards those in need.
If taken literally, the only requisite is charity towards those in need.
That is a significant portion of the Gospel message, but it is not complete in itself, obviously. The earliest Christians took the Beatitudes, for instance, as the core of the Gospel message, but there were other emphases such as the faith of the believers, the life, death, resurrection and ascension of Jesus, the hope of eternal salvation and the emerging realization of Jesus as God.