If forgers and malefactors are put to death by the secular power, there is much more reason for excommunicating and even putting to death one convicted of heresy.

Thomas Aquinas’s quote discusses the relationship between secular and religious authority, particularly in how both systems address criminality. Aquinas argues that if forgers and malefactors (criminals) are sentenced to death by secular authorities, then there is even greater justification for the church to excommunicate or, in extreme cases, execute someone convicted of heresy. The quote reflects the view that heresy, as a challenge to church teachings and authority, is a more serious offense than secular crimes, and therefore, it warrants even harsher penalties from the religious community.

Aquinas, a medieval theologian and philosopher, was deeply concerned with church doctrine and the moral and legal implications of sin and heresy. During his time, heresy was considered not just a religious violation but a threat to the stability and authority of the church and society. The quote shows how Aquinas believed that protecting religious orthodoxy was of paramount importance and should be enforced with the same seriousness as secular laws against crime.

The idea of excommunication or even death as a punishment for heresy was not unique to Aquinas but was a widely accepted view in the medieval church. In his work, Aquinas often discussed the justification for severe punishments in order to preserve the integrity of the church and protect the faithful from what was considered spiritual corruption. This view, however, is controversial today, as modern religious and legal systems generally reject the idea of executing individuals for beliefs or ideas.

The origin of this quote comes from Aquinas’s Summa Theologica, where he addresses various aspects of moral and ecclesiastical law. In the context of his time, the church held significant power and influence, and heresy was seen as a direct challenge to both faith and order. This quote reflects Aquinas’s belief in the primacy of the church in defining moral and ethical standards and his view of how these standards should be enforced within society.