Exodus 7:19

And the Lord said, Say to Aaron, Let the rod in your hand be stretched out over the waters of Egypt, and over the rivers and the streams and the pools, and over every stretch of water, so that they may be turned to blood; and there will be blood through all the land of Egypt, in vessels of wood and in vessels of stone.

Exodus 8:5-6

And the Lord said to Moses, Say to Aaron, Let the rod in your hand be stretched out over the streams and the waterways and the pools, causing frogs to come up on the land of Egypt.

Exodus 8:16

And the Lord said to Moses, Say to Aaron, Let your rod be stretched out over the dust of the earth so that it may become insects through all the land of Egypt.

Exodus 10:12

And the Lord said to Moses, Let your hand be stretched out over the land of Egypt so that the locusts may come up on the land for the destruction of every green plant in the land, even everything untouched by the ice-storm.

Exodus 10:21

And the Lord said to Moses, Let your hand be stretched out to heaven, and all the land of Egypt will be dark, so that men will be feeling their way about in the dark.

Exodus 14:21

And when Moses' hand was stretched out over the sea, the Lord with a strong east wind made the sea go back all night, and the waters were parted in two and the sea became dry land.

Exodus 14:26

And the Lord said to Moses, Let your hand be stretched out over the sea, and the waters will come back again on the Egyptians, and on their war-carriages and on their horsemen.

Genesis 1:10

And God gave the dry land the name of Earth; and the waters together in their place were named Seas: and God saw that it was good.

Exodus 9:22-23

And the Lord said to Moses, Now let your hand be stretched out to heaven so that there may be an ice-storm on all the land of Egypt, on man and on beast and on every plant of the field through all the land of Egypt.

Exodus 9:33

So Moses went out of the town, and stretching out his hands made prayer to God: and the thunders and the ice-storm came to an end; and the fall of rain was stopped.

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 the Lord said to Moses, Say to Aaron, Let the rod in your hand be stretched out over the streams and the waterways and the pools, causing frogs to come up on the land of Egypt.
Exodus 9:22
And the Lord said to Moses, Now let your hand be stretched out to heaven so that there may be an ice-storm on all the land of Egypt, on man and on beast and on every plant of the field through all the land of Egypt.
Exodus 10:12
And the Lord said to Moses, Let your hand be stretched out over the land of Egypt so that the locusts may come up on the land for the destruction of every green plant in the land, even everything untouched by the ice-storm.
Exodus 14:21
And when Moses' hand was stretched out over the sea, the Lord with a strong east wind made the sea go back all night, and the waters were parted in two and the sea became dry land.

Their pools

Genesis 1:10
And God gave the dry land the name of Earth; and the waters together in their place were named Seas: and God saw that it was good.

General references

Exodus 4:17
And take in your hand this rod with which you will do the signs.
Exodus 8:5
And the Lord said to Moses, Say to Aaron, Let the rod in your hand be stretched out over the streams and the waterways and the pools, causing frogs to come up on the land of Egypt.
Exodus 9:22
And the Lord said to Moses, Now let your hand be stretched out to heaven so that there may be an ice-storm on all the land of Egypt, on man and on beast and on every plant of the field through all the land of Egypt.
Psalm 78:44
So that their rivers were turned to blood, and they were not able to get drink from their streams.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain