Galatians 4:11
I am afraid of you, lest I have bestowed upon you labor in vain.
1 Thessalonians 3:5
For this cause, when I could no longer forbear, I sent to know your faith, lest by some means the tempter may have tempted you, and our labor be in vain.
Galatians 2:2
And I went by revelation, and communicated to them that gospel which I preach among the Gentiles, but privately to them who were of reputation, lest by any means I should run, or had run in vain.
Isaiah 49:4
Then I said, I have labored in vain, I have spent my strength for naught, and in vain; yet surely my judgment is with the LORD, and my work with my God.
Acts 16:6
Now when they had gone throughout Phrygia, and the region of Galatia, and were forbidden by the Holy Spirit to preach the word in Asia;
1 Corinthians 15:58
Therefore, my beloved brethren, be ye steadfast, immovable, always abounding in the work of the Lord, forasmuch as ye know that your labor is not in vain in the Lord.
2 Corinthians 11:2-3
For I am jealous over you with godly jealousy: for I have espoused you to one husband, that I may present you as a chaste virgin to Christ.
2 Corinthians 12:20-21
For I fear, lest, when I come, I shall not find you such as I would, and that I shall be found by you such as ye would not: lest there be debates, envyings, wraths, strifes, backbitings, whisperings, swellings, tumults:
Galatians 4:20
I desire to be present with you now, and to change my voice; for I stand in doubt of 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; that I may rejoice in the day of Christ, that I have not run in vain, neither labored in vain.
2 John 1:8
Look to yourselves, that we lose not those things which we have wrought, but that we receive a full reward.