the Jews ordained, and took upon them, and upon their seed, and upon all such as joined themselves unto them, so that it should not fail, that they would keep these two days according to the writing thereof, and according to the appointed time thereof, every year;

The Jews made a rule and gave an undertaking, causing their seed and all those who were joined to them to do the same, so that it might be in force for ever, that they would keep those two days, as ordered in the letter, at the fixed time every year;

διεταξαν οι Ιουδαιοι, και εδεχθησαν εφ' εαυτους και επι το σπερμα αυτων και επι παντας τους προστιθεμενους εις αυτους, να μη λειψωσι ποτε απο του να φυλαττωσι τας δυο ταυτας ημερας, κατα το γεγραμμενον περι αυτων και κατα τον καιρον αυτων εκαστου ετους·

The Jews ordained, and took upon them, and upon their seed, and upon all such as joined themselves unto them, so as it should not fail, that they would keep these two days according to their writing, and according to their appointed time every year;