Are the Jewish feasts and Passover able to save anyone?
No. Jewish feasts and Passover cannot save anyone. They are beautiful pictures of grace, but salvation is not by works or keeping feast days. Jew and Gentile alike are unworthy and without hope, and both must be saved the same way—by grace through the gospel, dropping works religion.
Les explains that for these Jews it is no different than for Gentiles: Paul says there is no difference. A Jew does not come in on a different or lower level; all are together unworthy and without hope. A Jew has to be saved the same way Gentiles are today. If it is by grace, that gospel by which we are saved, then it is no more of works. Even Jewish people must understand that if they are going to be saved by this gospel of grace, they have to drop all their works religion of Judaism. As beautiful as their ceremonies may be—their Passover service and many feast days are beautiful pictures of the whole program of grace and our doctrine of grace—they are not going to be saved by keeping those Jewish feast celebrations. They have to come away from that and realize it is not by works, not by keeping any feast days, but all of grace. There can be no works for a Jew any more than for a Gentile, because if it is of works, then it is no more grace; otherwise work is no more work. It sounds like double talk, but it isn't.
And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then is it no more grace: otherwise work is no more work.