Matthew 24:39

καὶ οὐκ ἔγνωσαν, ἕως ἦλθεν ὁ κατακλυσμὸς καὶ ἦρεν ἅπαντας, οὕτως ἔσται καὶ ἡ παρουσία τοῦ υἱοῦ τοῦ ἀνθρώπου.

RBT Translation:

And they did not recognized until the Flood came, and he lifted up all together, in this way also the Presence of the Son of the Man will be.

Julia Smith Literal 1876 Translation:
And knew not till the inundation came, and took them all away; so also shall be the arrival of the Son of man.

LITV Translation:
And they did not know until the flood came and took all away. So also will be the coming of the Son of man.