How do we know that true believers will continue in their faith?

The assurance that true believers will continue in their faith is grounded in the character of God and the work of the Holy Spirit within them. Hebrews 3:6 and 14 both emphasize the condition of holding fast to our confidence in Christ until the end. This perseverance is not solely a human effort; rather, it is the result of being kept by the power of God (1 Peter 1:5). The Scriptures affirm that true believers exhibit a continuous seeking of Christ, demonstrating that they are indeed partakers in His grace. Those who fall away demonstrate that they were never truly a part of the body of Christ, aligning with 1 John 2:19, which states that if they had been of us, they would have continued with us.