Cathartic Cries

"וגם אני שמעתי את נאקת בני ישראל אשר מצרים מעבידים אותם ואזכור את בריתי"

When Hashem first asks Moshe to take Bnei Yisrael out he is very hesitant. Why? Not only because he is humble but because Bnei Yisrael weren't in the mindset of redemption. To be redeemed one has to be in the mindset and believe that he/she is redeemable. This is why 4/5ths of the nation didn't make it out of Mitzrayim.

Accomplishment without effort cannot occur (לא יגעתי ומצאתי אל תאמין). The one exception to this was the Exodus from Egypt.

Provided courtesy of rabbisilber.com