2 Corinthians 1:12
Paul Defends His Changed Plans
1:12 For our reason for confidence is this: the testimony of our conscience, that with pure motives and sincerity which are from God – not by human wisdom but by the grace of God – we conducted ourselves in the world, and all the more toward you.
Romans 12:8
12:8 if it is exhortation, he must exhort; if it is contributing, he must do so with sincerity; if it is leadership, he must do so with diligence; if it is showing mercy, he must do so with cheerfulness.
Romans 16:18-19
16:18 For these are the kind who do not serve our Lord Christ, but their own appetites. By their smooth talk and flattery they deceive the minds
of the naive.
16:19 Your obedience is known to all and thus I rejoice over you. But I want you to be wise in what is good and innocent in what is evil.