Two groups

"Vayei'anchu Bnei Yisrael Min HaAvodah Vayizaku; Bnei Yisrael sighed from the work and they cried." (Shemos 2:23). The Kli Yakar asks, "Why does the pasuk separate the sighing and crying instead of putting them together?"

He answers that there were two distinct reactions to the Koshi HaShibud. The first group were the good people. When they could no longer shoulder the pain, they cried to Hashem to relieve them. The second group cried but not to Hashem. They lamented their plight and complained against Hashem. "These two groups," says the Kli Yakar, "needed to be mentioned separately and not in the same breath."

History has shown this time and time again. Bnei Yisrael has faced many periods of oppression. Some people scream to Hashem, while some blame Hashem and walk away altogether. The Kli Yakar adds that pasuk ends, "Vataal Shavasam El HaElokim; The cries were heard by Hashem." But whose cries were heeded? "Min HaAvodah," only the group who cried to Hashem from the Avodah, and not the ones who rebelled because of it.
http://revach.net/parshas-hashavua/quick-vort/Parshas-Shemos-Kli-Yakar-Two-Reactions-To-The-Oppression-In-Mitzrayim/4878