What does 1 Timothy 6:10 call the root of all kinds of evil?

Answer: The love of money

It is the love of money, not money itself, that is the root of all kinds of evil; by craving it some wandered from the faith.

“For the love of money is the root of all kinds of evil. By craving it, some have wandered away from the faith and pierced themselves with many sorrows.”— 1 Timothy 6:10 (BSB)