Kabbalah zu Schemot 6:5

"Yet trouble came." It was the trouble and confusion about Joseph, which was the hardest affliction of all. Why? Because Jacob loved Joseph, who is the secret of the Covenant through which Jacob entered Egypt. After this, it is written, "I remembered my covenant" (Beresheet 9:15), because the Shechinah was there with him, with the Covenant, who is Joseph. Thus, the confusion about Joseph was harder on him than all other afflictions that befell him.

Come and behold: During the time when the wrath (of Judgment) was raging throughout the world, Noah was not mentioned. But after the Judgment was completed, what does the scripture say? It says, "And Elohim remembered Noah." Now was his name mentioned. A different explanation of "And Elohim remembered Noah" is that it is similar to "And I remembered My covenant" (Shemot 6:5).