How do we know that believers will be perfect in heaven?

The certainty of believers' perfection in heaven rests on the transformative power of God's grace, as articulated in scriptures such as Romans 8:29, which states that believers are predestined to be conformed to the image of His Son. In heaven, every sinful inclination will be removed, and we shall fully embody the matchless character of Jesus. This not only implies freedom from sin but also the perfection of love and holiness, allowing us to experience joy and desires that reflect God's own. This hope assures us that our relationship with God will be deeply intimate and fulfilling, beyond human comprehension.