Parallel
John 9:4
Patriarchal Greek New Testament (1904) · Berean Standard Bible
ἐμὲ δεῖ ἐργάζεσθαι τὰ ἔργα τοῦ πέμψαντός με ἕως ἡμέρα ἐστίν· ἔρχεται νὺξ ὅτε οὐδεὶς δύναται ἐργάζεσθαι.
While it is daytime, we must do (note: BYZ and TR I must do) the works of Him who sent Me. Night is coming, when no one can work.