Exodus 7:19

And Jehovah saith unto Moses, 'Say unto Aaron, Take thy rod, and stretch out thy hand against the waters of Egypt, against their streams, against their rivers, and against their ponds, and against all their collections of waters; and they are blood -- and there hath been blood in all the land of Egypt, both in vessels of wood, and in those of stone.'

Exodus 8:5-6

And Jehovah saith unto Moses, 'Say unto Aaron, Stretch out thy hand, with thy rod, against the streams, against the rivers, and against the ponds, and cause the frogs to come up against the land of Egypt.'

Exodus 8:16

And Jehovah saith unto Moses, 'Say unto Aaron, Stretch out thy rod, and smite the dust of the land, and it hath become gnats in all the land of Egypt.'

Exodus 10:12

And Jehovah saith unto Moses, 'Stretch out thy hand against the land of Egypt for the locust, and it goeth up against the land of Egypt, and doth eat every herb of the land -- all that the hail hath left.'

Exodus 10:21

And Jehovah saith unto Moses, 'Stretch out thy hand towards the heavens, and there is darkness over the land of Egypt, and the darkness is felt.'

Exodus 14:21

And Moses stretcheth out his hand towards the sea, and Jehovah causeth the sea to go on by a strong east wind all the night, and maketh the sea become dry ground, and the waters are cleaved,

Exodus 14:26

And Jehovah saith unto Moses, 'Stretch out thy hand toward the sea, and the waters turn back on the Egyptians, on their chariots, and on their horsemen.'

Genesis 1:10

And God calleth to the dry land 'Earth,' and to the collection of the waters He hath called 'Seas;' and God seeth that it is good.

Exodus 9:22-23

And Jehovah saith unto Moses, 'Stretch forth thy hand towards the heavens, and there is hail in all the land of Egypt, on man, and on beast, and on every herb of the field in the land of Egypt.'

Exodus 9:33

And Moses goeth out from Pharaoh, from the city, and spreadeth his hands unto Jehovah, and the voices and the hail cease, and rain hath not been poured out to the earth;

Treasury of Scripture Knowledge

Summary

And the LORD spake unto Moses, Say unto Aaron, Take thy rod, and stretch out thine hand upon the waters of Egypt, upon their streams, upon their rivers, and upon their ponds, and upon all their pools of water, that they may become blood; and that there may be blood throughout all the land of Egypt, both in vessels of wood, and in vessels of stone.

Their pools

Bible References

Stretch

Exodus 8:5
And Jehovah saith unto Moses, 'Say unto Aaron, Stretch out thy hand, with thy rod, against the streams, against the rivers, and against the ponds, and cause the frogs to come up against the land of Egypt.'
Exodus 9:22
And Jehovah saith unto Moses, 'Stretch forth thy hand towards the heavens, and there is hail in all the land of Egypt, on man, and on beast, and on every herb of the field in the land of Egypt.'
Exodus 10:12
And Jehovah saith unto Moses, 'Stretch out thy hand against the land of Egypt for the locust, and it goeth up against the land of Egypt, and doth eat every herb of the land -- all that the hail hath left.'
Exodus 14:21
And Moses stretcheth out his hand towards the sea, and Jehovah causeth the sea to go on by a strong east wind all the night, and maketh the sea become dry ground, and the waters are cleaved,

Their pools

Genesis 1:10
And God calleth to the dry land 'Earth,' and to the collection of the waters He hath called 'Seas;' and God seeth that it is good.

General references

Exodus 4:17
and this rod thou dost take in thy hand, with which thou doest the signs.'
Exodus 8:5
And Jehovah saith unto Moses, 'Say unto Aaron, Stretch out thy hand, with thy rod, against the streams, against the rivers, and against the ponds, and cause the frogs to come up against the land of Egypt.'
Exodus 9:22
And Jehovah saith unto Moses, 'Stretch forth thy hand towards the heavens, and there is hail in all the land of Egypt, on man, and on beast, and on every herb of the field in the land of Egypt.'
Psalm 78:44
And He turneth to blood their streams, And their floods they drink not.