How do we know that believers are secure in God's hands?

The assurance of a believer's security is deeply rooted in the promises of God and His omnipotent nature. John 10:29 reinforces this belief, stating that no one can pluck believers out of the Father's hand, emphasizing the divine protection that encompasses all of God's saints. This belief is echoed in Deuteronomy 33:3, assuring us that all God's people are held securely in His love. The permanence of salvation is not based on individual merit but on God's free mercy and love, thus providing a solid foundation for the believers' confidence in their eternal safety.