Exodus 1:18

1:18 Then the king of Egypt summoned the midwives and said to them, “Why have you done this and let the boys live?”

Exodus 5:4

5:4 The king of Egypt said to them, “Moses and Aaron, why do you cause the people to refrain from their work? Return to your labor!”

Exodus 15:23

15:23 Then they came to Marah, but they were not able to drink the waters of Marah, because they were bitter. (That is why its name was Marah.)