Greek Bible Art: Murder of Holofernes

The image shows The Discovery of the Murder of Holofernes by Sandro Botticelli (source). This verse is from Judith 14:16.

ἡ κεφαλὴ οὐκ ἔστιν ἐπ᾽ αὐτῷ.
Caput eius non est in illo.
His head was taken from him.