Complex sentence: Puritans were distinguished at this point by emphasis on Calvinism and preaching, and a growing sabbatarianism; and preference for a presbyterian system of church polity; and they opposed religious practices in the Church that at any point came close to Roman Catholic ritual.
Split into simpler sentences: Puritans were distinguished at this point by emphasis on Calvinism and preaching, a growing sabbatarianism, and preference for a presbyterian system of church polity. They opposed religious practices in the Church that at any point came close to Roman Catholic ritual.