“The LORD passed before him and proclaimed, "The LORD, the LORD, a God merciful and gracious, slow to anger, and abounding in steadfast love and faithfulness …” (v6). Moses asked to know God (33:13), and this was God’s self-revealing declaration. He wanted the Israelites to know His character, giving them a solid reason to trust Him. He had already rescued them from Egypt, and He promised to do more “marvels” on their behalf (v10); their part of the covenant was to follow and obey God exclusively (v14-28).
“I have made a covenant with you and with Israel” (v27). Even when we don’t seek God, He comes searching for us, initiating His covenant of grace because of His great love.