Psalm 105:29
He turned their waters into blood, and slew their fish.
Cross-reference
Psalm 78:44
Parallel
Psalm 78:44 recounts the same plague of water turned to blood, reinforcing God's judgment on Egypt.
Exodus 7:20
Allusion
Exodus 7:20 is the original account of the water turned to blood, which this verse summarizes.
Exodus 7:21
Allusion
Exodus 7:21 details the death of fish and undrinkable water, matching the 'slew their fish' here.
Revelation 16:3
Parallel
Revelation 16:3 depicts a similar plague of blood in the sea, echoing the first plague as a pattern of end-time judgment.
Exodus 7:17
Allusion
Exodus 7:17 is the LORD's declaration that the waters will turn to blood, which this verse records as accomplished.