The Congregation for the Doctrine of the Faith (CDF) is a department of the Roman Catholic Church responsible for promoting and safeguarding the teachings of the Church. Established in 1542, it originally focused on combating heresy but has since evolved to address various doctrinal issues and ensure adherence to Catholic beliefs. The CDF plays a crucial role in examining theological questions, issuing guidelines, and overseeing the moral conduct of clergy and laity. It also reviews the writings of theologians and provides responses to inquiries about faith and morals, helping to maintain the integrity of Catholic doctrine worldwide.