This resolution is essentially Congress going on record to speak out against antisemitism and encourage others—politicians, religious leaders, and community figures—to do the same. It also formally recognizes and thanks Jewish-American members of the military for their service, and expresses Congress's commitment to making sure Jewish Americans (and everyone else) can practice their religion safely, without fear of attack. Since it's a resolution rather than a law, it doesn't create any new rules, spend any money, or require anyone to take specific action—it's a statement of values and intent rather than something that changes what people can or must do.