It was a favourite argument of the voluntaries that an established church could not be a free church; it was subject to the authority of the state, and could not be free, as the nonconformists were, to obey its divine Head in all things. This position Chalmers and his friends resolutely denied. The alliance between church and state was an alliance between two independent powers, each of which was supreme in its own department. In forming a connection with the state, the church did not surrender one particle of its independence; it remained as free as ever to follow the guidance of its divine Head in every point where He had expressed His will. Nay, this freedom was expressly secured by the statutes of the realm. It knew to its cost how eager the rulers of the country had often been to deprive it of its freedom, and at every important crisis of its history, when it renewed or revised its alliance with the state, it had taken care that its freedom should be expressly conceded. It was while the voluntary controversy was at its height that the collision between the civil and ecclesiastical courts became acute, for this very question, the independence and freedom of the church, was the great bone of contention. When the decisions of the Court of Session and the House of Lords were given, it became only too apparent that, in the judgment of the civil courts, the church did not possess the independence it had claimed. This was a dreadful, a shattering blow to Dr. Chalmers, and when it was authoritatively declared, notwithstanding all his intense partiality for an established church, he at once severed his alliance with the state. The main ground on which he acted was, that a church enthralled to the state could never be that beneficent instrument, that powerful moral agent, for which he valued it,—could never be the means of training the people in those holy ways, those high moral and spiritual habits, on which their highest welfare depended.