New Revised Standard Version
The simple believe everything, but the clever consider their steps.

Contemporary English Version
Don't be stupid and believe all you hear; be smart and know where you are headed.

New American Bible
The naive believe everything, but the shrewd watch their steps.

Douay-Rheims Bible
The innocent believeth every word: the discreet man considereth his steps. No good shall come to the deceitful son: but the wise servant shall prosper in his dealings, and his way shall be made straight.

The innocent believeth every word: the discreet man considereth his steps. No good shall come to the deceitful son: but the wise servant shall prosper in his dealings, and his way shall be made straight.

simple

Proverbs 4:26 Decline not to the right hand, nor to the left: turn away thy foot from evil. For the Lord knoweth the ways that are on the right hand: but those are perverse which are on the left hand. But he will make thy courses straight, he will bring forward thy ways in peace.

Proverbs 22:3 The prudent man saw the evil, and hid himself: the simple passed on, and suffered loss.

Proverbs 27:12 The prudent man seeing evil hideth himself: little ones passing on have suffered losses.

Romans 16:18,19 For they that are such serve not Christ our Lord but their own belly: and by pleasing speeches and good words seduce the hearts of the innocent. . . .

Ephesians 4:14 That henceforth we be no more children tossed to and fro and carried about with every wind of doctrine, by the wickedness of men, by cunning craftiness by which they lie in wait to deceive.

Ephesians 5:17 Wherefore, become not unwise: but understanding what is the will of God.

1 John 4:1 Dearly beloved, believe not every spirit, but try the spirits if they be of God: because many false prophets are gone out into the world.

the prudent

Proverbs 14:8 The wisdom of a discreet man is to understand his way: and the imprudence of fools erreth.

Amos 5:13 Therefore the prudent shall keep silence at that time, for it is an evil time.

Acts 13:7 Who was with the proconsul Sergius Paulus, a prudent man. He, sending for Barnabas and Saul, desired to hear the word of God.