And he said, I will make all my goodness pass before thee, and I will proclaim the name of the LORD before thee; and will be gracious to whom I will be gracious, and will shew mercy on whom I will shew mercy. I will make all my goodness pass before thee - Thou shalt not have a sight of my justice, for thou couldst not bear the infinite splendor of my purity: but I shall show myself to thee as the fountain of inexhaustible compassion, the sovereign Dispenser of my own mercy in my own way, being gracious to whom I will be gracious, and showing mercy on whom I will show mercy.
I will proclaim the name of the Lord - See Clarke's note on Exodus 34:6.