Parallel
Isaiah 58:4
Rahlfs Septuagint (1935) · Berean Standard Bible
εἰ εἰς κρίσεις καὶ μάχας νηστεύετε καὶ τύπτετε πυγμαῖς ταπεινόν ἵνα τί μοι νηστεύετε ὡς σήμερον ἀκουσθῆναι ἐν κραυγῇ τὴν φωνὴν ὑμῶν
You fast with contention and strife to strike viciously with your fist. You cannot fast as you do today and have your voice be heard on high.