Exodus 33:19 (NIV)

And the Lord said, 'I will cause all my goodness to pass in front of you, and I will proclaim my name, the Lord, in your presence. I will have mercy on whom I will have mercy, and I will have compassion on whom I will have compassion.'

This verse reflects God's declaration of His character, name and sovereignty in showing mercy and compassion. This declaration underscores the depth of God's character and His authority to extend mercy according to His divine plan and purpose.