St. Faustina
“Today, I was talking with the Lord, and He said to me, ‘There are souls with whom I can do nothing. They are souls that are continuously observing others, but know nothing of what is going on within their own selves. They talk about others continually, even during this of grand silence, which is reserved for speaking only with Me. Poor souls, they do not hear my words; their interior remains empty. They do not look for Me within their own hearts, but in idle talk, where I am never to be found. They sense their emptiness, but they do not recognize their own guilt, while souls in whom I reign completely are a constant source of remorse to them. Instead of correcting themselves, their hearts swell with envy, and if they do not come to their senses, they plunge in even deeper. A heart, which thus far is envious, now begins to be filled with hate. And they are already at the edge of the precipice. They are jealous of My gifts in other souls, but they themselves are unable and unwilling to accept them.’”
Source: St. Faustina, Diary: Divine Mercy in My Soul