When we look at the poem in book 1 lines (50-51-52-53) we can see he talks about, sending Satan to Hell.
"Nine times the space that measures day and night to mortal men, he with his horrid crew lay vanquished, rolling in the fiery gulf confounded though immortal"
In this paragraph Milton tells first fall to Hell of Satan. He says, Satan and Fallen Angles Lays in the Hell nine days and nine nights as an effect of fall. Their minds confuse but they didn't lose their immortality and their hate is still continuing, although they are in the Hell. In this paragraph we can see sending to Hell all the Fallen Angles are shown us as a punishment, so it is expected to Fallen Angles and Satan to be sorry, but they never lose their hate.
All the fallen Angles lost their name after they had fallen to Hell. If we look lines (84-85-86-87) we can see here Satan's first talk and he is thinking about things that he lost after he had been driven away.
"If thou beest he - but O how fallen! How changed from him who in the happy realms of light clothed with transcendent brightness didst outshine myriads, though bright!"
Satan also talks about his rebellion against God and he talks about himself right and proud. Satan says I won't change against to power of God. According to Saran, he is right but God isn't because God used force...