תעל שועתם אל האלקים (שמות ב:כג)

The Seforim explain on the pasuk ותעל שועתם – that the main outcry of the Yidden in Mitzrayim was because of אל האלקים -Hashem’s honor.  Since the Egyptians didn’t allow the Yiden to serve Hashem, they disturbed their Avodas Hashem, which they mainly cried about.

I shall grant these people favor in the eyes of Egypt. So that when you go, you will not go empty-handed.

The Medrash explains that the Yidden became rich when Hashem gave the Makkos-plagues to the Mitzriyim. The acronym of מצרים והי’ כי תלכון is the word מכות. The pasuk ends לא תלכו ריקם – through the Makkos, they won’t go out empty since they will become rich.