Does the Bible Contradict Itself?

[Undeceived]

Well, actually, my crisis is one born from uncertainty, rather than doubt. I do not yet have good reason to doubt that the Bible conveys the truth about Jesus--who he is and what he did. It's not what it says about him I doubt; it's what it expects me to do about him that I'm uncertain about. For the Biblical passages regarding salvation are unclear, due to their ambiguous wording.

Ephesians 2:8-10 "For it is by grace you have been saved, through faith —and this is not from yourselves, it is the gift of God—not by works, so that no one can boast."
This page has more:
http://deeptruths.com/bible-basics/salvation.html
Do any of these seem ambiguous to you?

So would you say both Catholics and Protestants are believers? If so, does what one believe about how to get to heaven have nothing to do with becoming such a believer?

Yes! What is better-- to know how to become righteous, or to actually be righteous? As long as one repents of their sins and accepts Jesus’ forgiveness they are made white as snow. They may have been misled, but salvation is not obtained through knowledge. If we are in relationship with Jesus Christ, he mediates for us. As Paul in 1 Corinthians 8:2-3 writes, "Those who think they know something do not yet know as they ought to know. But whoever loves God is known by God." In reality, every denomination is somewhat isolated from the truth. We are mere humans trying to comprehend God's master plan. But time and again Jesus tells us simply to believe. And Paul confirms grace as the only way to heaven. If we are truly fearful of falling out of grace for being "wrong" about how God operates, we are probably saved already.