For I fear, lest it come to pass, that when I come I shall not find you such as I would: and I shall be found unto you such as I would not. I fear lest there be found among you debate, envying, wrath, strife, backbitings, whisperings, swellings, and discord.

Lest

Yea, and I went up by revelation, and commended with them of the gospel, which I preach among the gentiles - but between ourselves with them which were counted chief, lest it should have been thought that I should run, or had run in vain.

Behold, I Paul say unto you, that if ye be circumcised, Christ shall profit you nothing at all.

And I said, "I labour in vain and spend my strength for nought, and unprofitably. Howbeit, my cause I commit to the LORD and my travail unto my God."

When they had gone throughout Phrygia and the region of Galatia, and were forbidden of the holy ghost to preach the word in Asia,

Therefore, my dear brethren, be ye steadfast and unmovable, always rich in the works of the Lord, forasmuch as ye know how that your labour is not in vain in the Lord.

holding fast the word of life, unto my rejoicing in the day of Christ, that I have not run in vain, neither have laboured in vain.

For this cause, when I could no longer forbear, I sent that I might have knowledge of your faith, lest haply the tempter had tempted you, and that our labour had been bestowed in vain.

Look on yourselves, that we lose not that we have wrought: but that we may have a full reward.

General references

But new wine must be poured into new vessels, and both are preserved.

For if I build again that which I destroyed, then make I myself a trespasser.