Premise 1 is a strawman and/or presuppositional fallacy.
"1) If God exists, he desires for us to know x is true, where x is the set of propositions we need to believe in so that we can be saved."
You claim knowledge of God's desires.
You claim the need for salvation.
You claim a set of "required" propositions.
"1) If God exists, he desires for us to know x is true, where x is the set of propositions we need to believe in so that we can be saved."
You claim knowledge of God's desires.
You claim the need for salvation.
You claim a set of "required" propositions.