2 Corinthians 4:2
On the other hand, I have renounced all underhanded, disgraceful methods; I neither practice cunning nor do I tamper with God's message, but by clear and candid statements of truth I try to commend myself to every human conscience in God's sight.
2 Corinthians 11:3
But I am apprehensive that, somehow or other, as the serpent by his cunning deceived Eve, your thoughts may be turned aside from single-hearted devotion to Christ.
2 Corinthians 11:13-15
For such men are sham apostles, dishonest workmen, masquerading as apostles of Christ.
2 Corinthians 12:16-18
But let it be granted, you say, that I never received from you financial support, yet, you say, by being a trickster I cheated you by my cunning.
1 Thessalonians 2:3
For our appeal did not originate from a delusion or an impure motive; it was not made in fraud;