2 Timothy 2:19 reads,
"But God’s truth stands firm like a foundation stone with this inscription: “The Lord knows those who are his,” and “All who belong to the Lord must turn away from evil.”
If you are aChristian, then you are a Christian and will be so until your redemption. But if you hear not the truth of God, although religious, then you are an unbeliever.
The Saved listen gladly to the Word. The Unsaved change, twist, and manipulate the truth like a devil to justify their slavery to sin! They lie about the truth. They came out from among them in the church.
When the Bible speaks of reprobates and apostates, it speaks of the unsaved, not the saved! Never apply these verses to you or you missing the mark. Christ’s blood covers your sins past present and future.