Now there is a very interesting episode that took place in the life of Moses, recorded back here in Exodus 33 and 34. The context here is right after that horrible incident with the Golden Calf. That was a terrible mark on the Israelites' integrity before God. He was quite upset, and justly so, about what they had done, and He executed some punishments upon them.
What He did before Moses was rehearse His nature. And that was so encouraging to Moses, because he knew then that they were not abandoned - that He would be with him - because of what He is (what God was, and what God is). Not because Israel deserved in any way, shape, or form for God to be with them, because every single one of them deserved to be dead! But because God is God, He would continue through with His purpose; and these names exemplified what He would be doing.