There are genuine disagreements among Christians about the mechanisms of salvation.
I encourages you to "be a Berean" (see Acts 17:11) and study this yourself. This article may serve as a guide.

Introduction
Recognition
Faith
Repentance
Confession
Baptism
Church
Maturity
Fruitfulness
Conclusion

Entire article (pdf)

Scripture taken from the NEW AMERICAN STANDARD BIBLE, © 1960, 1962, 1963, 1968, 1971, 1972, 1973, 1975, 1977, by The Lockman Foundation. Used by permission.

Scripture references are in italics with the words of Jesus in red.