There are no guarantees that if we keep the Sabbath we will be successful. But honouring the Sabbath (and not overworking the other six days) will give us an opportunity to grow in our trust of God and experience his faithfulness. If we take time to honour the Sabbath we may actually find that we are less productive than we were before...God's provision for us as we honour his rhythms may be the grace to accept being passed over for a promotion, while gaining a greater sense of fulfillment as we do our work more aware of God, ourselves, and the people around us.