Joh 9:39 And Jesus said, For judgment I am come into this world, that they which see not might see; and that they which see might be made blind.

1Th 2:16    Forbidding us to speak to the Gentiles that they might be saved, to fill up their sins alway: for the wrath is come upon them to the uttermost.

Yet this did not deter them.

1Th 2:1    For yourselves, brethren, know our entrance in unto you, that it was not in vain:

1Th 2:2    But even after that we had suffered before, and were shamefully entreated, as ye know, at Philippi, we were bold in our God to speak unto you the gospel of God with much contention.