Exodus 4:9

But and if they will not believe the two signs, neither hearken unto thy voice, then take of the water of the river and pour it upon the dry land. And the water which thou takest out of the river shall turn to blood upon the dry land."

Exodus 1:22

Then Pharaoh charged all his people, saying, "All the men children that are born, cast into the river; and save the maid children alive."

Exodus 7:19-25

And the LORD spake unto Moses, "Say unto Aaron, 'Take thy staff and stretch out thine hand over the waters of Egypt, over their streams, rivers, ponds and all pools of water, that they may be blood, and that there may be blood in all the land of Egypt: both in vessels of wood and also of stone.'"

Matthew 7:2

For as ye judge, so shall ye be judged: and with what measure ye mete, with the same shall it be measured to you again.

Treasury of Scripture Knowledge

Summary

And it shall come to pass, if they will not believe also these two signs, neither hearken unto thy voice, that thou shalt take of the water of the river, and pour it upon the dry land: and the water which thou takest out of the river shall become blood upon the dry land.

The water

General references

Bible References

The water

Exodus 7:19
And the LORD spake unto Moses, "Say unto Aaron, 'Take thy staff and stretch out thine hand over the waters of Egypt, over their streams, rivers, ponds and all pools of water, that they may be blood, and that there may be blood in all the land of Egypt: both in vessels of wood and also of stone.'"

Blood

Exodus 1:22
Then Pharaoh charged all his people, saying, "All the men children that are born, cast into the river; and save the maid children alive."
Exodus 7:19
And the LORD spake unto Moses, "Say unto Aaron, 'Take thy staff and stretch out thine hand over the waters of Egypt, over their streams, rivers, ponds and all pools of water, that they may be blood, and that there may be blood in all the land of Egypt: both in vessels of wood and also of stone.'"
Matthew 7:2
For as ye judge, so shall ye be judged: and with what measure ye mete, with the same shall it be measured to you again.

General references

1 Kings 13:3
And he gave them the same time a sign, saying, "This is the sign, of that the LORD hath promised: Behold, the altar shall rent and the ashes that are in it shall fall out."