Parallel
Jeremiah 9:4
Swete's Septuagint · Berean Standard Bible
ἕκαστος ἀπὸ τοῦ πλησίον αὐτοῦ φυλάξασθε, καὶ ἐπʼ ἀδελφοῖς αὐτῶν μὴ πεποίθατε, ὅτι πᾶς ἀδελφὸς πτέρνῃ πτερνιεῖ, καὶ πᾶς φίλος δολίως πορεύσεται.
9:5
Each one betrays his friend; no one tells the truth. They have taught their tongues to lie; they wear themselves out committing iniquity.