We are seeing God make a new creation (a new Heaven and Earth, and a new man [Spiritual]). we are resting in Christ to do the work which is our Sabbath rest, typed and shadowed by the Sabbath day of first creation in the beginning of creation when God rested. Now it is no longer us doing the work but Christ who dwells in us. So we keep the Sabbath being led by the Spirit and not by man's condition or tradition, in which He told us to do no work.