2 Corinthians 2:17
For we are not as many, which corrupt the word of God: but as of sincerity, but as of God, in the sight of God speak we in Christ.
Torrey's Topical Textbook—AKJV

2 Corinthians 4:2
But have renounced the hidden things of dishonesty, not walking in craftiness, nor handling the word of God deceitfully; but by manifestation of the truth commending ourselves to every man's conscience in the sight of God.
Torrey's Topical Textbook—AKJV

1 Thessalonians 2:3,5
For our exhortation was not of deceit, nor of uncleanness, nor in guile:
Torrey's Topical Textbook—AKJV