Catechism of the Catholic Church §2119 — excerpt
Tempting God consists in putting his goodness and almighty power to the test by word or deed. Thus Satan tried to induce Jesus to throw himself down from the Temple and, by this gesture, force God to act.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.