There are hundreds of 'denominations' in this world which claim to be 'Christian'.
Membership in an organization that teaches spiritual values is good, but does membership in an 'organization' make one a Christian?
The Pharisees were some of the most 'religious' people on earth, yet what exactly were they known for?
If you have no clue, then I would suggest that you read the New Testament book of John, chapter 18.
The truth is simple. Spiritual reality often reflects physical reality, and vise versa.
If someone is in an accident and loses much of their life-blood, then what can save their physical life?
A blood transfusion from a blood doner, of course.
But what of someone who is in danger of spiritual 'death'? (That is, eternal separation from the Spirit of God, from the 'living vine', or the Spirit of LIFE!)?
There is only ONE remedy for this. One need not leave their 'denomination' and join another to accomplish this, since recieving spiritual LIFE has little to do with what denomination one belongs to (UNLESS of course they do not teach this simple, Biblical truth).
What one needs to do to offset the danger of spiritual 'death' is to willingly recieve the divine LIFE BLOOD TRANSFUSION which Christ Jesus offers to us at Calvary...
"...having made peace through the blood of his cross." - Colossians 1:20
(And once we have made peace with God through the blood of Jesus' cross, we may recieve ALL of the LIFE that we will ever need to live victoriously)
"And he shewed me a pure river of water of life, clear as crystal, proceeding out of the throne of God and of the Lamb." - Revelation 22:1
"And whosoever will, let (them) take the water of life freely." - Revelation 22:17