Galatians 3:4

Have you suffered so much for nothing? If it really is for nothing.

2 John 1:8

Look out for yourselves, so as not to lose what we have worked for, but so as to get your full reward.

1 Corinthians 15:2

and through which you are to be saved, unless your faith at first was spurious.

Hebrews 6:4-6

For it is impossible for those who have once for all been enlightened and have experienced the gift from heaven, who have been made sharers of the Holy Spirit

Hebrews 10:32-39

But you must continue to remember those earlier days when first you received the light and then endured so great a struggle with persecution,

2 Peter 2:20-22

For if, after men have escaped the corrupting ways of the world through a full knowledge of the Lord and Saviour Jesus Christ, they again become entangled in them and are conquered by them, then their last condition is worse than their former one.

Treasury of Scripture Knowledge did not add