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.

all my goodness

Nehemiah 9:25 And they took strong cities, and a fat land, and possessed houses full of all goods, wells dig, vineyards, and olive groves...

Psalm 25:13 His soul shall dwell at ease; and his seed shall inherit the earth.

Psalm 65:4 Blessed is the man whom you choose, and cause to approach to you, that he may dwell in your courts...

Jeremiah 31:12,14 Therefore they shall come and sing in the height of Zion, and shall flow together to the goodness of the LORD, for wheat, and for wine...

Zechariah 9:17 For how great is his goodness, and how great is his beauty! corn shall make the young men cheerful, and new wine the maids.

Romans 2:4 Or despise you the riches of his goodness and forbearance and long-suffering...

Ephesians 1:6-8 To the praise of the glory of his grace, wherein he has made us accepted in the beloved...

proclaim

Exodus 3:13-15 And Moses said to God, Behold, when I come to the children of Israel, and shall say to them, The God of your fathers has sent me to you...

Exodus 34:5-7 And the LORD descended in the cloud, and stood with him there, and proclaimed the name of the LORD...

Isaiah 7:14 Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel.

Isaiah 9:6 For to us a child is born, to us a son is given: and the government shall be on his shoulder: and his name shall be called Wonderful...

Isaiah 12:4 And in that day shall you say, Praise the LORD, call on his name, declare his doings among the people...

I will be

Romans 9:15-18,23 For he said to Moses, I will have mercy on whom I will have mercy, and I will have compassion on whom I will have compassion...

A view of God's Glory
THAT WAS A large request to make. He could not have asked for more: "I beseech thee, show me thy glory." Why, it is the greatest petition that man ever asked of God. It seems to me the greatest stretch of faith that I have either heard or read of. It was great faith which made Abraham go into the plain to offer up intercession for a guilty city like Sodom. It was vast faith which enabled Jacob to grasp the angel; it was mighty faith which enabled Elijah to rend the heavens and fetch down rain from …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 54: 1908

Moses the Type of Christ.
"The Lord thy God will raise up unto thee a Prophet from the midst of thee, of thy brethren, like unto me; unto Him ye shall hearken."--Deut. xviii. 15. The history of Moses is valuable to Christians, not only as giving us a pattern of fidelity towards God, of great firmness, and great meekness, but also as affording us a type or figure of our Saviour Christ. No prophet arose in Israel like Moses, till Christ came, when the promise in the text was fulfilled--"The Lord thy God," says Moses, "shall …
John Henry Newman—Parochial and Plain Sermons, Vol. VII

"Behold Your God!"
In Isaiah's day the spiritual understanding of mankind was dark through misapprehension of God. Long had Satan sought to lead men to look upon their Creator as the author of sin and suffering and death. Those whom he had thus deceived, imagined that God was hard and exacting. They regarded Him as watching to denounce and condemn, unwilling to receive the sinner so long as there was a legal excuse for not helping him. The law of love by which heaven is ruled had been misrepresented by the archdeceiver …
Ellen Gould White—The Story of Prophets and Kings