1 Timothy 4:10 For to this end we toil and strive, because we have our hope set on the living God, who is the Savior of all people, especially of those who believe.
Hebrews 4:11 Let us therefore strive to enter that rest, so that no one may fall by the same sort of disobedience.
2 Peter 1:10-11 Therefore, brothers, be all the more diligent to confirm your calling and election, for if you practice these qualities you will never fall. For in this way there will be richly provided for you an entrance into the eternal kingdom of our Lord and Savior Jesus Christ.
2 Peter 3:14 Therefore, beloved, since you are waiting for these, be diligent to be found by him without spot or blemish, and at peace.