Притчи 14:15

15 The simple believeth every word; But the prudent takes heed to his step. We do not translate, "every thing," for "word" and faith are correlates, Psa 106:24, and פּתי is the non-self-dependent who lets himself be easily persuaded by the talk of another: he believes every word without proving it, whether it is well-meant, whether it is true, whether it is salutary and useful, so that he is thus, without having any firm principle, and without any judgment of his own, driven about hither and thither; the prudent, on the other hand, considers and marks his step, that he may not take a false step or go astray, he proves his way (8a), he takes no step without thought and consideration (בּין or הבין with ל, to consider or reflect upon anything, Psa 73:17, cf. Psa 33:15) - he makes sure steps with his feet (Heb 12:13), without permitting himself to waver and sway by every wind of doctrine (Eph 4:14).

Note, 1. It is folly to be credulous, to heed every flying report, to give ear to every man's story, though ever so improbable, to take things upon trust from common fame, to depend upon every man's profession of friendship and give credit to every one that will promise payment; those are simple who thus believe every word, forgetting that all men, in some sense, are liars in comparison with God, all whose words we are to believe with an implicit faith, for he cannot lie. 2. It is wisdom to be cautious: The prudent man will try before he trusts, will weigh both the credibility of the witness and the probability of the testimony, and then give judgment as the thing appears or suspend his judgment till it appears. Prove all things, and believe not every spirit.