It is a command: "Now I exhort you, brethren, by the name of our Lord Jesus Christ, that you all agree, and there be no division among you, but you be made compete in the same mind and in the same judgment."
God has blessed us with many denominations.
What would schism look like if "many denominations" is not schism?
-A8
We are admonished to be in agreement with Christ and not with the teachings or traditions of men. When the Catholic Church invented the Papacy, and then elevated Mary to the status of Mini God and came up with the rosary and indulgences and buying your way to heaven, it was clear that the idea of a single monlithic organization with a centralized government and a single person acting as Christ at the head was not what God intended. The reformation was a return to the purity of the early church. It took men off the throne and placed God back in his rightful place as the sole object of our worship and the sole determiner of our eternal destiny.
Catholicism is a bankrupt system. It is spiritually bankrupt and soon to be monetarily bankrupt. It is all form over substance, ritualism over faith, works over grace, men over God.