Christians, are we obliged to keep the Sabbath Day as the Israelites did? Does our salvation depend on this?

God made the Sabbath for us, to rest. During the law we were to rest on the Sabbath, but now, our rest is in Jesus Christ, he is our sabbath. No we are not bound by legalism, it is by the law that were are unable to keep it. It is by Jesus that we can have rest and he is our only rest.