Parallel
Exodus 4:9
Rahlfs Septuagint (1935) · Berean Standard Bible
καὶ ἔσται ἐὰν μὴ πιστεύσωσίν σοι τοῖς δυσὶ σημείοις τούτοις μηδὲ εἰσακούσωσιν τῆς φωνῆς σου λήμψῃ ἀπὸ τοῦ ὕδατος τοῦ ποταμοῦ καὶ ἐκχεεῖς ἐπὶ τὸ ξηρόν καὶ ἔσται τὸ ὕδωρ ὃ ἐὰν λάβῃς ἀπὸ τοῦ ποταμοῦ αἷμα ἐπὶ τοῦ ξηροῦ
But if they do not believe even these two signs or listen to your voice, take some water from the Nile and pour it on the dry ground. Then the water you take from the Nile will become blood on the ground.”