Diary of St. Faustina...Things that displeased Jesus

43 On one occasion I saw two sisters who were about to enter hell. A terrible agony tore my soul; I prayed to God for them, and Jesus said to me, Go to Mother Superior and tell her that those two sisters are in danger of committing a mortal sin. The next day I told this to the Superior. One of them had already repented with great fervor and the other was going through a great struggle.

44 One day Jesus said to me, I am going to leave this house... because there are things here which displease Me. And the Host came out of the tabernacle and came lo rest in my hands and I, with joy, placed it back in the tabernacle. This was repeated a second time, and I did the same thing. Despite this, it happened a third time, but the Host was transformed into the living Lord Jesus, who said to me, I will stay here no longer! At this, a powerful love for Jesus rose up in my soul. I answered, "And I, I will not let You leave this house, Jesus!" And again Jesus disappeared while the Host remained in my hands. Once again I put it back in the chalice and closed it up in the tabernacle. And Jesus stayed with us. I undertook to make three days of adoration by way of reparation.

Praying for Priest in Mortal Sin........St. Teresa of Avila..

Volume 1 of The Collected Works of St. Teresa of Avila, Chapter 38, parts 23 & 24 & 25:

23. "Once, while approaching to receive Communion, I saw with my soul's eyes more clearly than with my bodily eyes two devils whose appearance was abominable. It seems to me their horns were wrapped around the poor priests's throat, and in the host that was going to be given to me I saw my Lord with the majesty I mentioned placed in the priest's hands, which were clearly seen to be His offender's; and I understood that that soul was in mortal sin. What would it be my Lord, to see Your beauty in the midst of such abominable figures? They were as though frightened and terrified in Your presence, for it seems they would have very eagerly fled had You allowed them.

This vision caused me such great disturbance I don't know how I was able to receive Communion, and I was left with a great fear, thinking that if the vision had been from God, His Majesty would not have permitted me to see the evil that was in that soul. The Lord Himself told me to pray for him and that He had permitted it so that I might understand the power of the words of consecration and how God does not fail to be present, however evil the priest who recites them, and that I might see His great goodness since He places Himself in those hands of His enemy, and all out of love for me and for everyone. I understood well how much more priests are obliged to be good than are others, how deplorable a thing it is to receive this most Blessed Sacrament unworthily, and how much the devil is lord over the soul in mortal sin. It did me a great deal of good and brought me deep understanding of what I owed God. May He be blessed forever and ever.