Genesis 30:4

וַתִּתֶּן־ל֛וֹ אֶת־בִּלְהָ֥ה שִׁפְחָתָ֖הּ לְאִשָּׁ֑ה וַיָּבֹ֥א אֵלֶ֖יהָ יַעֲקֹֽב׃

καὶ ἔδωκεν αὐτῷ Βάλλαν τὴν παιδίσκην κἠν αὐτῆς αὐτῷ γυναῖκα, καὶ εἰσῆλθεν πρὸς αὐτὴν Ἰακώβ·

Greek text from Swete's edition, CC BY-SA 4.0

Así le dió á Bilha su sierva por mujer; y Jacob entró á ella.

So Rachel gave Jacob her servant Bilhah as a wife, and he slept with her,