LXX Gen 31:29

καὶ νῦν ἰσχύει ἡ χείρ μου κακοποιῆσαί σε· ὁ δὲ θεὸς τοῦ πατρός σου πρὸς μὲ λέγων Φύλαξαι σεαυτὸν μή ποτε λαλήσῃς μετὰ Ἰακὼβ πονηρά.

I have power to do you great harm, but last night the God of your father said to me, ‘Be careful not to say anything to Jacob, either good or bad.’