Note 13 at 1 Th. 2:10: The Thessalonians had to admit that Paul's conduct was holy, righteous, and blameless while he was with them. They knew that what he was saying was true. And Paul invoked the Lord as a witness too (here and v. 5). Paul's conscience was clear. He had behaved himself in a godly manner the whole time he was with them. How many of us would be willing to call on the Lord to bear witness to our actions and motives?