Why did the catholic church see galileo's dialogue as a threat to its teachings?

In 1616 the Church sent Galileo formal warning that they considered his theory a denial of Christian doctrine
The Church now accused Galileo of heresy, tried him before the Inquisition, and forced him to renounce his views and submit to the Church.

What do you need with? ? try to review those chapters and quiz yourself using flashcards to retain the information