How can Christians avoid falling into disbelief like Judas?

To prevent falling into disbelief, Christians are encouraged to be diligent in their study of Scripture and to surround themselves with a community of believers who can provide support and accountability. The sermon notes that the heart of disbelief is often fueled by a lack of attention to God's Word and an inclination to pick and choose what to believe. By fully embracing the entirety of Scripture as the authoritative Word of God, believers fortify their faith against the tactics of the adversary. This includes regular prayer, partaking in the sacraments, and pursuing relationships that encourage spiritual growth. The writer of Hebrews warns against the hardness of heart that can come from neglecting these practices, urging the faithful to encourage one another daily so that no one falls away from the living God.