I also wish you to look at the Bridge of My only-begotten Son, and see the greatness thereof, for it reaches from Heaven to earth, that is, that the … - Catherine of Siena

The Devil, dearest daughter, is the instrument of My Justice to torment the souls who have miserably offended Me. And I have set him in this life to tempt and molest My creatures, not for My creatures to be conquered, but that they may conquer, proving their virtue, and receive from Me the glory of victory. And no one should fear any battle or temptation of the Devil that may come to him, because I have made My creatures strong, and have given them strength of will, fortified in the Blood of my Son, which will, neither Devil nor creature can move, because it is yours, given by Me.

See then how He returns, not in actual flesh and blood, but, as I have said, building the road of His doctrine, with His power, which road cannot be destroyed or taken away from him who wishes to follow it, because it is firm and stable, and proceeds from Me, who am immovable.

Preach the Truth as if you had a million voices. It is silence that kills the world. (quoted in )