Apart from Christ Jesus the HolySpirit is a consuming fire.

This warning was directed to Jewish believers who were falling back into Judaism and `trodding the blood of Christ underfoot`.

We are saved by GraceThroughFaith. Turning from Grace to works whether of Jewish tradition or Christian tradition is an affront to Christ Jesus.

Believers are required to believe in the total efficacy of the blood of Christ for their standing. Anything else represents unbelief and blasphemy.