As believers in Jesus, it is our responsibility to steward holy things. We have the written Word of God to preserve and honor (2 Timothy 3:16-17). We must be diligent and zealous in not profaning the Holy Spirit within us because He is holiness personified (1 Corinthians 6:19-20). Our greatest stewardship lies in what we do with the gifts God gives to us (1 Peter 4:10-11). In “God Tells the Man Who Cares”, A. W. Tozer wrote, “We should and must learn that we cannot handle holy things carelessly without suffering serious consequences.”
The consequence of being flippant about our faith, and the exercise of that faith, may very well be a faith that is not real (James 2:17). Without a genuine faith, there is no salvation (Hebrews 11:6). It’s hard to imagine any consequence more dire than that.