The Institution of Consent of Allegiance is a classic religious treatise written by Scottish author and theologian John Cunningham. In his book, he highlights the meaning and essence of the contractual relationship between man and God, considering it as the basis of Christian life and faith. The author analyzes in detail the historical context, biblical grounds and practical instructions regarding the act of agreement with God through an oath. Cunningham manages to convey complex concepts of religious theology in an accessible form, making this book an important resource for exploring Christian values and the practice of faith.