Please consider supporting this podcast:
Venmo: @Michelle-Stone-24
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Cory's website: https://www.templeendowment.com/
You can download a free copy of Completing Your Endowment from the website.
The discussion on the roadmap that the endowment provides can be found in Chapter 5 -- Priesthood and Temple Keys.
The discussion on the penalties is in Chapter 6 --The Endowment's Testimony of Christ. It is in the section labeled "The King's Ransom"