According to the 10th amendment what power does states have

In the US Constitution, the 10th amendment says that "Each state retains its sovereignty, freedom, and independence, and every power, jurisdiction, and right..."

Iam a german monk and professor of theology. i believe that the catholic church's practice of buying forgiveness of sins through indulgences is wrong. i have translated the bible into german to make it easier for more people to be able to study it. i am here to stand by my writings and i refuse your demand that i recant them