Exodus 7:14 reveals Pharaoh's hardened heart as the reason for the frog plague threat.

Exodus 9:2 echoes this same conditional threat — refusal brings a different plague (livestock).

Psalm 78:45 recalls the frog plague as part of God's judgment on Egypt — a historical reminder.

Psalm 105:30 also recalls the frog plague, emphasizing its extent (even in royal chambers).