Exodus 3:19

I know that the king of Egypt won't give you permission to go, no, not by a mighty hand.

Exodus 5:2

Pharaoh said, "Who is Yahweh, that I should listen to his voice to let Israel go? I don't know Yahweh, and moreover I will not let Israel go."

Exodus 6:1

Yahweh said to Moses, "Now you shall see what I will do to Pharaoh, for by a strong hand he shall let them go, and by a strong hand he shall drive them out of his land."

Exodus 7:1-14

Yahweh said to Moses, "Behold, I have made you as God to Pharaoh; and Aaron your brother shall be your prophet.

Psalm 136:11-12

And brought out Israel from among them; for his loving kindness endures forever;

Isaiah 63:12-13

who caused his glorious arm to go at the right hand of Moses? who divided the waters before them, to make himself an everlasting name?

Treasury of Scripture Knowledge

Summary

And I am sure that the king of Egypt will not let you go, no, not by a mighty hand.

No, not by a mighty hand

Bible References

Will not

Exodus 5:2
Pharaoh said, "Who is Yahweh, that I should listen to his voice to let Israel go? I don't know Yahweh, and moreover I will not let Israel go."
Exodus 7:4
But Pharaoh will not listen to you, and I will lay my hand on Egypt, and bring forth my armies, my people the children of Israel, out of the land of Egypt by great judgments.

No, not by a mighty hand

Exodus 6:1
Yahweh said to Moses, "Now you shall see what I will do to Pharaoh, for by a strong hand he shall let them go, and by a strong hand he shall drive them out of his land."
Psalm 136:11
And brought out Israel from among them; for his loving kindness endures forever;
Isaiah 63:12
who caused his glorious arm to go at the right hand of Moses? who divided the waters before them, to make himself an everlasting name?