What does the Bible say about final perseverance of the saints?

The final perseverance of the saints is a doctrine rooted in God's promise to maintain His chosen people in a state of grace until they enter eternal glory. This means that believers are preserved in their faith and safeguarded by God's mercy, as seen in passages like Daniel 7:18, which assures that 'the saints of the Most High shall take the kingdom and possess the kingdom for ever.' Through Christ's covenant care, the elect are protected from destruction and are assured of their eventual inheritance and glory. Thus, their salvation is secure, sustained by God's promise rather than their own efforts.