| Quote #1 "Nor had they yet among the sons of Eve |
This describes how Satan's associates were allowed to "wander" over the earth because of God's "suff'rance," or forbearance after the Fall. The most important word here is "trial," a word that comes up repeatedly in the poem and in Milton's other writings. It suggests something like a test of man's virtue, which is made manifest when he is tempted and refuses.
| Quote #2 "So will fall |
God makes it clear that Adam will fall through his own "fault." Even though this sounds like predestination, it's actually foreknowledge. God sees all events – past, present, and future – as simultaneous or present, including Adam's fall, which hasn't happened yet (in the poem). Just because God knows it will happen though doesn't mean he makes it happen; He knows how Adam himself will make it happen.
| Quote #3 "They therefore, as to right belonged, |
This passage picks up where the previous left off; things like "fate," "predestination," or "high foreknowledge" don't control one's destiny; in fact, God here places the onus on man's "will," which isn't subject to such external forces as "fate," etc.