Parallel
Exodus 4:15
Rahlfs Septuagint (1935) · Berean Standard Bible
καὶ ἐρεῖς πρὸς αὐτὸν καὶ δώσεις τὰ ῥήματά μου εἰς τὸ στόμα αὐτοῦ καὶ ἐγὼ ἀνοίξω τὸ στόμα σου καὶ τὸ στόμα αὐτοῦ καὶ συμβιβάσω ὑμᾶς ἃ ποιήσετε
You are to speak to him and put the words in his mouth. I will help both of you to speak, and I will teach you what to do.