"For it is by grace you have been saved, through faith—and this not from yourselves, it is the gift of God— not by works, so that no one can boast." Ephesians 2:8-9Of course, exactly who is saved and how is a matter of much debate, and obvious importance. However, I tend to agree with my sister when she says that perhaps we worry a bit too much about whether or not other people are saved. Since I believe that logic is a good way to approach one's faith, here is an example of why I do not believe salvation is as restrictive as people sometimes make it out to be.
Assumption one: We are all saved in the same manner, and that manner is through Jesus. As he himself is said to have spoken in John 14:6, "Jesus answered, "I am the way and the truth and the life. No one comes to the Father except through me."
Assumption two: People who lived before Jesus can be saved. The best support for this that I can think of is Jesus' parable about the rich man and Lazarus, which can be found starting in Luke 16:19.
Conclusion: The mechanism of salvation must be a bit more inclusive than belief in Christ Jesus as Savior. Which is not to say that believing Jesus is one's Savior is bad, or unimportant, just that I do not believe that we should write people off for failing that standard. It seems to me that doing so ignores God's great love and ability to meet us where we are, praise God!