Calvinism is a theological system that stems from the teachings of John Calvin, a 16th-century Protestant reformer. Although the term "Calvinism" itself does not appear in the Bible, its principles are derived from biblical interpretations. Calvinism is best known for its doctrines encapsulated in the acronym TULIP, which stands for Total Depravity, Unconditional Election, Limited Atonement, Irresistible Grace, and Perseverance of the Saints. Each of these doctrines finds support in various biblical texts. For example, Total Depravity is reflected in Romans 3:10-12, which states, "None is righteous, no, not one; no one understands; no one seeks for God." Unconditional Election is supported by Ephesians 1:4-5, where Paul writes about God choosing believers before the foundation of the world. Limited Atonement, the belief that Christ died specifically for the elect, can be inferred from John 10:14-15, where Jesus speaks of laying down His life for His sheep. Irresistible Grace is illustrated in passages like John 6:37, which emphasizes that those given to Christ will come to Him. Finally, Perseverance of the Saints is affirmed in Philippians 1:6, where Paul assures that God will bring to completion the work He began in believers. While Calvinism is not explicitly mentioned in Scripture, its theological framework is deeply rooted in biblical texts and has significantly influenced Protestant thought.