Test everything; hold fast the good
Sifting, not smashing
Paul gives the Thessalonians an instruction with two halves, and most people only keep the first. Test all things — examine them, weigh them, refuse to swallow whole whatever you were handed. That half is easy to love in an upheaval; it gives permission to question everything, and questioning feels like freedom. But the sentence does not stop there. Hold firmly to that which is good. The testing has an aim, and the aim is not an empty pan. It is to keep the gold. John says the same to a church awash in voices: do not believe every spirit, but test the spirits, whether they are of God, because plenty of false ones have gone out into the world. Notice that he commands discernment, not paralysis and not wholesale rejection. The work of coming through a shaking with your faith intact is sifting work — the patient labor of running the whole inheritance through your hands, letting the gravel fall, and closing your fist around what proves true. It is the opposite of both swallowing everything and smashing everything.
“Test all things, and hold firmly that which is good.”
— Paul, to the Thessalonians — 1 Thessalonians 5:21 (WEB)
“Don't believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world.”
There is a kind of upheaval that mistakes demolition for the goal — that treats the smashing as proof of honesty and counts an empty pan a kind of victory. But Paul will not let the sifting end there. Test all things, yes; and then hold fast to that which is good. If you are questioning everything you were ever taught, that is not faithlessness — it may be the most honest thing you have ever done. Only do not stop halfway and call the wreckage wisdom. The point of running the pan through the water is not to be left with nothing; it is to find the gold you can now trust precisely because you tested it and it held. Anyone can break a thing. Discernment is harder and slower: it keeps the treasure while it releases the dross, and it refuses to throw out what is true just because it came tangled up with what was false. Sift. Do not merely smash.