For I fear lest perhaps coming I find you not such as I wish, and that I be found by you such as ye do not wish: lest there might be strifes, jealousies, angers, contentions, evil speakings, whisperings, puffings up, disturbances;

Lest

and I went up according to revelation, and I laid before them the glad tidings which I preach among the nations, but privately to those conspicuous among them, lest in any way I run or had run in vain;

Behold, I, Paul, say to you, that if ye are circumcised, Christ shall profit you nothing.

And I said, I have laboured in vain, I have spent my strength for nought and in vain; nevertheless my judgment is with Jehovah, and my work with my God.

And having passed through Phrygia and the Galatian country, having been forbidden by the Holy Spirit to speak the word in Asia,

So then, my beloved brethren, be firm, immovable, abounding always in the work of the Lord, knowing that your toil is not in vain in the Lord.

holding forth the word of life, so as to be a boast for me in Christ's day, that I have not run in vain nor laboured in vain.

For this reason I also, no longer able to refrain myself, sent to know your faith, lest perhaps the tempter had tempted you and our labour should be come to nothing.

See to yourselves, that we may not lose what we have wrought, but may receive full wages.

General references

but new wine is to be put into new skins, and both are preserved.

For if the things I have thrown down, these I build again, I constitute myself a transgressor.