They are in the Bible. No need to look elsewhere. But if you want to get technical they are here, where you will also find the Jews in preparation for the build.
A side note. If they don't build it then the Anti-Christ can't defile it, Christ can't sanctify it and sit in it, and the Bible is a lie. Instead, it is spot on prophecy.
Christ prophesied it as an end time event, and for the first time in 2,000 years the Jews are training Temple Priests, rebuilding the necessary items, and For the first time in 2000 years there are pure red heifers to sacrifice. And they will return to sacrificing. <Also prophesied.
And here one of the ways to identify the antichrist:
“He will confirm a covenant with many for one ‘seven.’ In the middle of the ‘seven’ he will put an end to sacrifice and offering. And at the temple he will set up an abomination that causes desolation, until the end that is decreed is poured out on him.” (Daniel 9:27)
Third Temple Blueprint Campaign Exceeds Funding Target | Messianic Bible
An Internet-based crowdfunding campaign between the Ninth of Av and Rosh HaShanah surpassed its 60-day goal of $100,000, as almost 900 investors pitched in to rebuild the Beit HaMikdash (בית מקדש, God's Holy Temple). Drawing $104,814 from its first ever Indiegogo campaign, the Temple Institute...
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