1 Thessalonians 2:1
For you know, brothers, our introduction to you that it was not in vain,
1 Corinthians 15:2
by which also you are saved, if you adhere to the word we preached to you, unless indeed you believed in vain.
1 Corinthians 15:10
but by the grace of God I am what I am, and his grace to me was not in vain, but I labored more abundantly than they all, but not I but the grace of God with me.
1 Corinthians 15:58
Therefore, my beloved brothers, be steadfast, immovable, always abounding in the work of the Lord, knowing that your labor is not in vain in the Lord.
2 Corinthians 6:1
And being also co-laborers we exhort you not to receive the grace of God in vain,??2 for he says, In an acceptable time I heard you, and in a day of salvation I helped you; behold, now is an acceptable time, behold, now is a day of salvation,??3 giving no offense in any thing, that the ministry may not be blamed,
Galatians 2:2
and I went up by a revelation, and proposed to them the gospel which I preach to the gentiles, but privately to persons of distinction, lest I should run or had run in vain.
Galatians 4:11
I am afraid of you, lest I have expended labor on you in vain.
Philippians 2:16
holding fast the word of life, for my glorying in the day of Christ, that I did not run in vain, nor labor in vain.
1 Thessalonians 1:3-10
remembering without ceasing your work of faith and labor of love and patience of the hope of our Lord Jesus Christ before God even our Father,
1 Thessalonians 2:13
For this cause also we thank God without ceasing, that receiving the word of God heard from us, you received not a word of men, but, as it is in truth, a word of God, who also works in you that believe.
1 Thessalonians 3:5
For this reason, being no longer able to forbear, I sent to know your faith, lest in some way the tempter should have tempted you, and our labor be in vain.
2 Thessalonians 1:10
when he shall come to be glorified in his saints and to be admired by all that believe in that day, for our testimony was believed by you.
2 Thessalonians 3:1
Finally, brothers, pray for us, that the word of the Lord may run and be glorified, as also with you,