But that is NOT a condition of salvation. We are saved not according to our works, but according to his own purpose and grace (1 Tim 1:9) and as you have received him, so walk in him (Col 2:6). The perseverance of faith is to continue to believe and rest in Him as our wisdom, and righteousness, and sanctification, and redemption (1 Cor 1:30).
But this man, after he had offered one sacrifice for sins for ever, sat down on the right hand of God (Heb 10:12) and God has raised us up together, and made us sit together in heavenly places in Christ Jesus (Eph 2:6).
The Christian life is not "do" but "DONE". His work on the cross has perfected for ever them that are sanctified Heb 10:14. IT IS FINISHED.