If so, then this apllies...
Ephesians 1:13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise, 1:14 Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory.
If so, then you are saved, but confused.
For as the Apostle Paul notes in 1 Corithians 15; only unless the resurrection you believed in was in vain; did not take place, and Christ is still dead, you are saved.
Once in, one is sealed in...until the day of the redemption of the purchase possession.
Why is that like that? Toward what end?
"...unto the praise of his glory."
Any Grace believing individual should be able to point this out to you.
But they do not because they are offended by your present views.
This they do against the very grace they assert is not only unconditional, but eternal.
For if you once believed that Christ died for your sins and then rose again that you might be made the righteousness of God in His Son's finished work on your behalf and in your stead, then you are stuck in God's family - like it or not.
Grace is not grace if it is unable to risk ingratitude.
The Cross - the supreme example of such grace.
Ephesians 2:4 But God, who is rich in mercy, for his great love wherewith he loved us, 2:5 Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved