I'm curious . . . what are you telling her is the Gospel of Christ? @Evmer above states that she may not want to submit to Christ because she doesn't want to give up sin. That said, most Christians do not believe that obedience is a reflection of True Salvation. So, you can see why I would ask you what she understands the Gospel to be. I also ask this, because . . . to date (and I"m about to turn 54), I've yet to EVER have one person tell me what the Gospel is, and I've been in the "church" all of my life.
This might be useful for your congregation:
Hebrews 5:12
12For when for the time ye ought to be teachers, ye have need that one teach you again which be the first principles of the oracles of God; and are become such as have need of milk, and not of strong meat.
In a nutshell, what is the Gospel of Christ?
The Gospel of Christ in a nutshell:
1. God loves us (John 3:16, Romans 5:8)
2. All are sinners (Romans 3:10, Romans 3:23)
3. God has a remedy for sin - the Gospel of Christ (John 1:12, Romans 6:23, 1 Corinthians 15:3-4)
4. Anyone can be saved from hell (Romans 10:13, Revelation 3:10)
I understand we have a lot of different schools of thought and denominations on this message board. If you seem to disagree with any of what I just showed you above then please feel free to demonstrate how it is wrong and/or how the message could be improved. Thank you.