'Others are glad of the leisure of the Lord's day, and now and then of an hour besides, when they can lay hold upon it. But we may keep a continual Sabbath. We may do almost nothing else, but study and talk of God and glory, and engage in acts of prayer and praise, and drink in his sacred, saving truths. Our employment is high and spiritual. Whether we be alone, or in company, our business is for another world. O that our hearts were but more tuned to this work! What a blessed, joyful life should we then live! How sweet would our study be to us! How pleasant the pulpit! And what delight would our conference about spiritual and eternal things afford us! To live among such excellent helps as our libraries afford, to have so many silent wise companions whenever we please - all these, and many other similar privileges of the ministry, bespeak our unwearied dilligence in the work.'
Richard Baxter, The Reformed Pastor, p.128.