A few thoughts on salvation...
We are saved by faith, but our faith is based on reason and truth...it is not a blind faith, to the contrary, it is a reasonable faith...it is one substantiated in the reality of truth...
There is much to say about this that can be combined from the fields of apologetics, philosophy, history, science, mathematics, cosmology, etc, but here are a few verses that speak to Faith, Reason, and Truth
Faith
For by grace you have been saved through faith. And this is not your own doing; it is the gift of God. Ephesians 2:8
Reason
“Come now, let us reason together, says the LORD: though your sins are like scarlet, they shall be as white as snow; though they are red like crimson, they shall become like wool. ~Isaiah 1:18
Truth
Sanctify them in the truth; your word is truth. ~John 17:17