Acts 13:7
who was with the proconsul, Sergius Paulus, an intelligent man; the same having called for Barnabas and Saul, desired to hear the word of God;
Romans 16:18-19
For those who are such are not serving our Lord Christ, but their own belly; and, through their kind words and flattering speeches, they beguile the hearts of the simple.
Ephesians 4:14
that we may no longer be babes, billow-tossed, and carried about with every wind of teaching, in the sleight of men, in the craftiness suited to the artifice of error;
Ephesians 5:17
For this reason, be not foolish, but understand what the will of the Lord is.
1 John 4:1
Beloved, believe not every spirit, but try the spirits, whether they are of God; because many false prophets have gone forth into the world.