Matthew 10:16
Behold, I send you forth as sheep in the midst of wolves: be ye therefore prudent as serpents, and harmless as doves.
Luke 10:3
Go forth! behold, I send you out as lambs in the midst of wolves.
Acts 20:29
For this I know, that after my departure there will come among you grievous wolves, not sparing the flock:
2 Corinthians 11:3
But I fear lest as the serpent beguiled Eve by his craftiness, so your minds should be corrupted from the simplicity which belongs to Christ.
Philippians 2:15
that ye may be blameless and harmless, the children of God, inoffensive, in the midst of an untoward and perverse generation, among whom ye shine as luminaries in the world;
1 Corinthians 14:20
Brethren, be not children in your minds: though in naughtiness be ye children, but in your minds be men complete.
Luke 21:15
for I will give you a mouth and wisdom, which all your adversaries shall be utterly unable to contradict or resist.
Romans 16:18-19
For such are not servants to our Lord Jesus Christ, but to their own belly; and by smooth speeches and flattering commendations deceive the hearts of the guileless.
2 Corinthians 1:12
For our glorying is this, the testimony of our conscience, that in simplicity and godly sincerity, not with carnal wisdom, but by the grace of God, we have conducted ourselves in the world, and peculiarly towards you.
2 Corinthians 8:20
Avoiding this, that no man should lay any blame to us in this abundance which is administered by us:
2 Corinthians 11:14
And no marvel! For Satan himself is transformed into an angel of light.
Ephesians 5:15-17
Take heed, then, that ye walk circumspectly, not as fools, but as wise,
Colossians 1:9
For this cause we also from the day we heard it have not ceased praying for you, and beseeching God that ye may be filled with the knowledge of his will, in all wisdom and spiritual understanding;
Colossians 4:5
Walk wisely with regard to those without, redeeming the time.
1 Thessalonians 2:10
Ye are witnesses, and God also, how holily, and justly, and faultlessly we conducted ourselves among you that believe:
1 Thessalonians 5:22
Abstain from all appearance of evil.