Exodus 3:19

And I know that the king of Egypt will not give you leave to go, no, not by a mighty hand.

Exodus 5:2

And Pharaoh said, Who is Jehovah, that I should hearken unto his voice to let Israel go? I know not Jehovah, and moreover I will not let Israel go.

Exodus 6:1

And Jehovah said unto Moses, Now shalt thou see what I will do to Pharaoh: for by a strong hand shall he let them go, and by a strong hand shall he drive them out of his land.

Exodus 7:1-14

And Jehovah said unto Moses, See, I have made thee as God to Pharaoh; and Aaron thy brother shall be thy prophet.

Psalm 136:11-12

And brought out Israel from among them; For his lovingkindness endureth for ever;

Isaiah 63:12-13

that caused his glorious arm to go at the right hand of Moses? that 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
And Pharaoh said, Who is Jehovah, that I should hearken unto his voice to let Israel go? I know not Jehovah, and moreover I will not let Israel go.
Exodus 7:4
But Pharaoh will not hearken unto you, and I will lay my hand upon Egypt, and bring forth my hosts, my people the children of Israel, out of the land of Egypt by great judgments.

No, not by a mighty hand

Exodus 6:1
And Jehovah said unto Moses, Now shalt thou see what I will do to Pharaoh: for by a strong hand shall he let them go, and by a strong hand shall he drive them out of his land.
Psalm 136:11
And brought out Israel from among them; For his lovingkindness endureth for ever;
Isaiah 63:12
that caused his glorious arm to go at the right hand of Moses? that divided the waters before them, to make himself an everlasting name?

American Standard Version Public Domain