2 Samuel 12:15-16

15καὶ ἀπῆλθεν Ναθαν εἰς τὸν οἶκον αὐτοῦ. Καὶ ἔθραυσεν κύριος τὸ παιδίον, ὃ ἔτεκεν ἡ γυνὴ Ουριου τῷ Δαυιδ, καὶ ἠρρώστησεν.

16καὶ ἐζήτησεν Δαυιδ τὸν θεὸν περὶ τοῦ παιδαρίου, καὶ ἐνήστευσεν Δαυιδ νηστείαν καὶ εἰσῆλθεν καὶ ηὐλίσθη ἐν σάκκῳ ἐπὶ τῆς γῆς.