The Gospel never has been or will be popular, but it is authoritatively true.
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1 Thessalonians 2 (ESV)
1 For you yourselves know, brothers, that our coming to you was not in vain.
though we had already suffered and been shamefully treated at Philippi, as you know,
we had boldness
in our God
to you the gospel of God
in the midst of much conflict.
3 For our appeal does not spring
from error or impurity or any attempt to deceive,
4 but just as
we have been approved by God
to be entrusted with the gospel,
so we speak,
not to please man,
but to please God who tests our hearts.
5 For we never came
with words of flattery, as you know,
nor with a pretext for greed—God is witness.<