Why is the concept of apostasy important for Christians?

The concept of apostasy is critical for Christians because it reveals the serious nature of turning away from the faith. The scriptures consistently emphasize that genuine faith is characterized by perseverance. Apostasy serves as a warning that those who seemingly embrace the faith but later reject it were never truly believers in the first place. This understanding encourages believers to examine their own faith, ensuring that they are rooted in God’s work rather than mere human decision.