How about the most important doctrine that God's word is truth and can be completely trusted.
There is truth to be understood in the following passage:
Luke 10:1 After these things the Lord appointed other seventy also, and sent them two and two before his face into every city and place, whither he himself would come.
ESV Now after this the Lord appointed seventy others, and sent them in pairs ahead of Him to every city and place where He Himself was going to come.
The majority of new versions including the ESV has the Lord appointing 72. Which is truth? Which can be trusted? ...
You quoted the ESV as saying seventy, then stated that it says 72. Get your facts straight.
As I have stated several times before, the KJV is not the accepted standard. Comparing any modern version to the KJV and claiming that a difference proves that the modern version is wrong
simply doesn't hold any value. By that logic, it is equally valid to claim that because the KJV doesn't match the modern version, that the KJV is wrong. Neither is logically sound.
The following verses in the KJV conflict:
"
Two and twenty years old was Ahaziah when he began to reign; and he reigned one year in Jerusalem. And his mother's name was Athaliah, the daughter of Omri king of Israel." (2 Kings 8:26, KJV)
"
Forty and two years old was Ahaziah when he began to reign, and he reigned one year in Jerusalem. His mother's name also was Athaliah the daughter of Omri." (2 Chronicles 22:2, KJV)
Deal with this clear contradiction and tell me whether the KJV "is truth and can be trusted". If you try to explain this away for the KJV then intellectual integrity
demands that you allow for explanations of
apparent anomalies in the modern versions.