Parallel
Numbers 31:24
Swete's Septuagint · Berean Standard Bible
καὶ πλυνεῖσθε τὰ ἱμάτια τῇ ἡ τῆ ἑβδόμῃ, καὶ καθαρισθήσεσθε· καὶ μετὰ ταῦτα τὴν παρεμβολήν.
On the seventh day you are to wash your clothes, and you will be clean. After that you may enter the camp.”