Yes, even the greatest among us can fall.
For example, Moses and his brother Aaron do not lead the people into the Promised Land. Instead of demonstrating God’s holiness, they excoriate the people. In an instant, Peter moves from the name “Rock” to the title of “Satan” because he refuses to join Jesus on the road to the crucifixion.
Yes, even the greatest among us fall.
So, today I join with St. Dominic, whose feast we celebrate, and I say with the psalmist- “Lord, when I hear your voice, may I not harden my heart!”