Matthew 10:16

Behold, I send you forth like sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves.

Romans 16:18-19

For such do not serve our Lord Christ, but their own stomach; and through fair speeches and eulogies deceive the hearts of the innocent.

Treasury of Scripture Knowledge

Summary

And with Absalom went two hundred men out of Jerusalem, that were called; and they went in their simplicity, and they knew not any thing.

Their simplicity

Bible References

Their simplicity

Matthew 10:16
Behold, I send you forth like sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves.
Romans 16:18
For such do not serve our Lord Christ, but their own stomach; and through fair speeches and eulogies deceive the hearts of the innocent.