Calvin Institutes on the church: “I will begin with the Church, into whose bosom God is pleased to collect his children, not only that by her aid and ministry they may be nourished so long as they are babes and children, but may also be guided by her maternal care until they grow up to manhood, and, finally, attain to the perfection of faith. What God has thus joined, let not man put asunder (Mark 10:9): to those to whom he is a Father, the Church must also be a mother. [4.1.1]” “But as it is now our purpose to discourse of the visible Church, let us learn, from her single title of Mother, how useful, nay, how necessary the knowledge of her is, since there is no other means of entering into life unless she conceive us in the womb and give us birth, unless she nourish us at her breasts, and, in short, keep us under her charge and government, until, divested of mortal flesh, we become like the angels (Mt. 22:30). For our weakness does not permit us to leave the school until we have spent our whole lives as scholars. Moreover, beyond the pale of the Church no forgiveness of sins, no salvation, can be hoped for, as Isaiah and Joel testify (Isa. 37:32; Joel 2:32).… By these words the paternal favour of God and the special evidence of spiritual life are confined to his peculiar people, and hence the abandonment of the Church is always fatal. [4.1.4]”