Galatians 4:11
I am afraid for you, [i.e., for your spiritual safety], that possibly I may have spent a lot of effort on your behalf for nothing.
1 Thessalonians 3:5
[So], for this reason, when I could not stand it any longer, I also sent [Timothy] to find out about your faith. I was afraid that somehow the tempter [i.e., Satan] had tempted you [to give up] and that our work [on your behalf] will have become useless.
Galatians 2:2
[It was] in response to [a divine] revelation that I went [there] and explained to them [I. e., the apostles and elders] the Gospel [message] that I had been preaching among the Gentiles. Then [later on I presented it] privately before those who were highly regarded [i.e., the three apostles, verse 9] so [they would have verification that] my running [i.e., ministry] had not been, nor was now, in vain.
Acts 16:6
And then Paul, Silas, Timothy [and perhaps others by now] traveled through the districts of Phrygia and Galatia [i.e., provinces of central Asia Minor] because [an inspired message from] the Holy Spirit would not permit them to proclaim the message in Asia [i.e., the westernmost province of Asia Minor].
1 Corinthians 15:58
Therefore, my dearly loved brothers, stand firm [in the faith]; do not be moved [from your commitment]. Always do your best to work for the Lord, since you know that your labor in the Lord's [service] is not for nothing.
2 Corinthians 11:2-3
For I am jealous for you with a godly jealousy, because I promised you in marriage to one husband, that I might present you to Christ as a pure virgin.
2 Corinthians 12:20-21
For I am afraid that somehow, when I come [to you], I might not find you the way I want you to be, and you might not find me the way you want me to be. I am afraid there might be quarrelling, jealousy, angry outbursts, factious spirits, slander, gossip, arrogance and [other] disturbances [there].
Galatians 4:20
But I would like to be present with you and change the tone [of my remarks], because I am very distressed over your condition.
Galatians 5:2-4
Look, I Paul am telling you that, if you revert to [the practice of] circumcision [i.e., the Jewish rite of identity, signifying the responsibility to observe the law of Moses], then Christ's [sacrifice] will be of no value to you.
Philippians 2:16
as you hold out [i.e., offer to people] the message of [never ending] life. Then I will have something to boast about on the day of Christ's [return, See 1:6], that I had not run the race for nothing nor had worked for nothing.
2 John 1:8
Pay close attention to yourselves, so that you do not lose what we [Note: Some Greek manuscripts say "you"] worked for [i.e., the spiritual blessings you have acquired], but [continue faithful] so that you will receive a full reward. [See Luke 12:47-48; James 3:1; Matt. 20:1-15].