1 Thessalonians 2:5

For neither at any time were we found using words of flattery, as ye know, nor a cloak of covetousness, God is witness;

Paul is not making a defense here, for he plainly said, "as ye know," indicating that there was no need at all to tell the Thessalonians these things; however, he is disclaiming any desire for human praise, pointing out that his whole life and character denied any such ambition on his part. Paul apparently was concerned lest the temporary success and widespread reports of it (mentioned in 1 Thessalonians 1:9) might turn their heads. Paul here showed them, and reminded them, how it is with a true Christian and a true preacher of the word of God.

Coveting not the praise of people, nor any glory that man might give, alleging the eternal truth of God's word in utmost sincerity, disclaiming even the meager support that might have been available to him had he consented to take it, this mighty apostle moved across the horizon of the first century with the strides of a spiritual giant. There has hardly been another like Paul.

God is witness ... So is all history!