O my Jesus, when shall we look upon souls with higher motives in mind? When will our judgments be true? You give us occasions to practice deeds of mercy, and instead we use the occasions to pass judgment. (Diary: Divine Mercy in my Soul, 1269)
How easy it is for us to pass judgments on people just because. Yet most of these occasion are occasions for us to do acts of mercy! How many times we have missed opportunities that would never come back for us to show the face of God's Mercy to others just because we choose to pass judgments.
And so instead of the face of mercy, we show the "wrath" and "anger" of God because we chose not to listen, to extend our hands, say hurtful and shameful words.