Galatians 4:11
I am afraid I may have labored over you in vain.
1 Thessalonians 3:5
For this reason, when I could bear it no longer, I sent to learn about your faith, for fear that somehow the tempter had tempted you and our labor would be in vain.
Galatians 2:2
I went up because of a revelation and set before them (though privately before those who seemed influential) the gospel that I proclaim among the Gentiles, in order to make sure I was not running or had not run in vain.
Isaiah 49:4
But I said, "I have labored in vain; I have spent my strength for nothing and vanity; yet surely my right is with the LORD, and my recompense with my God."
Acts 16:6
And they went through the region of Phrygia and Galatia, having been forbidden by the Holy Spirit to speak the word in Asia.
1 Corinthians 15:58
Therefore, my beloved brothers, be steadfast, immovable, always abounding in the work of the Lord, knowing that in the Lord your labor is not in vain.
2 Corinthians 11:2-3
For I feel a divine jealousy for you, since I betrothed you to one husband, to present you as a pure virgin to Christ.
2 Corinthians 12:20-21
For I fear that perhaps when I come I may find you not as I wish, and that you may find me not as you wish--that perhaps there may be quarreling, jealousy, anger, hostility, slander, gossip, conceit, and disorder.
Galatians 4:20
I wish I could be present with you now and change my tone, for I am perplexed about you.
Galatians 5:2-4
Look: I, Paul, say to you that if you accept circumcision, Christ will be of no advantage to you.
Philippians 2:16
holding fast to the word of life, so that in the day of Christ I may be proud that I did not run in vain or labor in vain.
2 John 1:8
Watch yourselves, so that you may not lose what we have worked for, but may win a full reward.