It appears that most are aware of the dangerously low level of biblical competency of the average Christian. The following summarizes the seriousness of such by a series of comparisons.
If every architect knew as much about buildings as some Christians know about Christianity, no building could withstand a spring shower. If every lawmen knew as much about law as some Christians know about Christianity, even the anarchists would long to be lawmen. If every sea captain knew as much about sailing the high seas as some Christians know about Christianity, every ship would be a mass graveyard. If every composer knew as much about music as some Christians know about Christianity, music would be so cacophonic it would be deemed cruel and unusual punishment. If every medical practitioner knew as much about medicine as Christians know about Christianity, every disease would be treated with a prescription from a Mr. Potato head game. If every educator knew as much about their subject as some Christians know about Christianity, kindergarten would be the terminal degree, and goo goo ga ga would be our lingua franca.
“And He gave some as apostles, and some as prophets, and some as evangelists, and some as pastors and teachers, for the equipping of the saints for the work of service, to the building up of the body of Christ” (Ephesians 4:11-12).