Exodus 3:19

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

Exodus 5:2

And Pharaoh said, Who is Jehovah, that I should obey His voice to let Israel go? I do not know Jehovah, neither will I let Israel go.

Exodus 6:1

And Jehovah said to Moses, Now you shall see what I will do to Pharaoh. For with a strong hand he shall let them go, and with a strong hand he shall drive them out of his land.

Exodus 7:1-14

And Jehovah said to Moses, See, I have made you a god to Pharaoh. And Aaron your brother shall be your prophet.

Psalm 136:11-12

and brought Israel out from among them, for His mercy endures forever;

Isaiah 63:12-13

who led them by the right hand of Moses with His glorious arm, dividing the water 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
And Pharaoh said, Who is Jehovah, that I should obey His voice to let Israel go? I do not know Jehovah, neither will I let Israel go.
Exodus 7:4
But Pharaoh shall not listen to you, and I will lay My hand upon Egypt, and bring My armies, My people the sons of Israel, out of the land of Egypt by great judgments.

No, not by a mighty hand

Exodus 6:1
And Jehovah said to Moses, Now you shall see what I will do to Pharaoh. For with a strong hand he shall let them go, and with a strong hand he shall drive them out of his land.
Psalm 136:11
and brought Israel out from among them, for His mercy endures forever;
Isaiah 63:12
who led them by the right hand of Moses with His glorious arm, dividing the water before them, to make Himself an everlasting name?