@Reb Eliezer,
“The Satmar Rav ztz’l says that when Aharon Hakohen threw the gold into fire and the Eigel came out obviously it did not come from kedusha”
The way to discern if you are learning the right lesson from something is to think, is this adding in my Avodas Hashem, or the opposite ch”v.
Yes, if someone makes a gematriya which proves that in 2026 we no longer have to keep Shabbos, this is completely wrong even if everything “matches up perfectly.”
This is how we know that the Eigel was wrong even though we saw great miracles with it – since it goes against Torah.
However, if someone uses gematriya and remazim to give himself chizzuk in Avodas Hashem, kol hakavod.
[This is similar to the idea of calculating kitzin: The Lubavitcher Rebbe explains why many great tzaddikim (including the Rambam) calculated kitzin despite the fact that the Gemara and the Rambam are so against. The Rebbe explains that the Gemara was referring to those who publicized that Moshiach is coming at this date, and if he doesn’t come, we should give up hope ch”v. The tzaddikim however used kitzin as a way to strengthen the Yidden’s emuna in Moshiach]