Galatians 4:11
I am afraid of you, lest by any means I have toiled for you in vain.
1 Thessalonians 3:5
For this reason, I also, no longer enduring it, sent, that I might know your faith, lest by some means the tempter tempted you, and our labor should be in vain.
Galatians 2:2
And I went up according to revelation, and laid before them the Gospel which I preach among the Gentiles; but privately to those of repute, lest by any means I should run, or had run, in vain.
Acts 16:6
And they passed through the Phrygian and Galatian country, having been forbidden by the Holy Spirit to speak the word in Asia;
1 Corinthians 15:58
Therefore, my beloved brethren, become steadfast, immovable, abounding in the work of the Lord, knowing that your labor is not in vain in the Lord.
2 Corinthians 11:2-3
For I am jealous over you with a godly jealousy; for I espoused you to one husband, that I may present you as a pure virgin to Christ;
2 Corinthians 12:20-21
For I fear, lest by any means, when I come, I should find you not such as I desire, and that I, too, should be found by you such as ye do not desire; lest, by any means, there should be strife, jealousy, wraths, factions, backbitings, whisperings, swellings, tumults;
Galatians 4:20
And I was wishing to be present with you now, and to change my voice; because I am perplexed about you.
Galatians 5:2-4
Behold, I, Paul, say to you, that, if ye be circumcised, Christ will profit you nothing.
Philippians 2:16
holding forth the word of life, for an occasion of glorying to me at the day of Christ, that I ran not in vain, neither labored in vain.
2 John 1:8
Take heed to yourselves, that ye lose not the things which we wrought, but that ye receive a full reward.