We are called upon to be discerning Believers, meaning we do not believe everything, everyone.
Below is some NT Scripture worth pondering.
Phil 1:9-10
9 And it is my prayer that your love may abound more and more,
with knowledge and all discernment, G144
9 καὶ τοῦτο προσεύχομαι, ἵνα ἡ ἀγάπη ὑμῶν ἔτι μᾶλλον καὶ μᾶλλον περισσεύῃ
ἐν ἐπιγνώσει καὶ πάσῃ αἰσθήσει,10 so that you may approve what is excellent,
and so be pure and blameless for the day of Christ,
10 εἰς τὸ δοκιμάζειν ὑμᾶς τὰ διαφέροντα,
ἵνα ἦτε εἰλικρινεῖς καὶ ἀπρόσκοποι εἰ
G144 discern. Aisthesis only NT.
G143 Aisthanomai only other NT verse
“But they understood not this saying, and it was hid from them,
that they perceived it not: and they feared to ask him of that saying.” Luke 9:45
G1382 approve Dokimazo Verb.
G1384 Dokimos. Noun
“In the ancient world there was no banking system as we know it today, and no paper money. All money was made from metal, heated until liquid, poured into moulds and allowed to cool. When the coins were cooled, it was necessary to smooth off the uneven edges. The coins were comparatively soft, and of course many people shaved them closely. In one century, more than eighty laws were passed in Athens to stop the practice of whittling down the coins then in circulation. But some money-changers were men of integrity, who would accept no counterfeit money; they were men of honour who put only genuine, full-weight money into circulation. Such men were called dokimos, and this word is used here for the Christian as he is to be seen by the world.” (Donald Grey Barnhouse, Romans: God’s Glory, p. 18.)
G1380 Dokeo. Adjective
G1166 Deiknuo. (Root of Dokimazo)
to show, expose to the eyes
2) metaph.
a) to give evidence or proof of a thing
b) to show by words or teach
Faithful G4103
true, essential conformity (instead deform, then reform, to conform)
Rom. 6:17
Phil. 2:12
2 Thes. 3:14
G Himself is faithful 1 Cor. 1
So to us it is commanded especially for anyone who comes in God’s name 1 Cor. 4