1 Corinthians 9:27 but I punish my body and enslave it, so that after proclaiming to others I myself should not be disqualified.
2 Timothy 2:12 if we endure, we will also reign with him; if we deny him, he will also deny us;
Philippians 2:12 Therefore, my beloved, just as you have always obeyed me, not only in my presence, but much more now in my absence, work out your own salvation with fear and trembling; 13 for it is God who is at work in you, enabling you both to will and to work for his good pleasure.
Hebrews 10:26
“For if we practice sin willfully after having received the accurate knowledge of the truth, there is no longer any sacrifice for sins left...”