1. _Its importance._ That God has required it, ought to be a sufficient motive to its performance. But its inseparable connection with our growth in grace magnifies its importance. It is by "beholding the glory of the Lord," that we are "changed into the same image." And how can we behold his glory, but by the spiritual contemplation of his infinite perfections? Again: the word of God is "a lamp to our feet;" but if we do not open our eyes to its truths, how can they guide our steps? It is only by the practical contemplation of these truths, that our souls can come into communion with them, drink in their spirit, and be guided by their precepts. Hence, the intimate connection of this devout exercise with growth in grace. 2. _The time and manner of Meditation._ It should be constant. Our minds and hearts should be so habitually fixed on heavenly things, that, after having been necessarily employed about our worldly affairs, our thoughts will voluntarily revert back to spiritual things, as to their proper element. Their tendency should be upward. Speaking of the godly man, David says, "in his law doth he meditate, _day and night_." "O how love I thy law," says the Psalmist; "it is my meditation _all the day_." You may, perhaps, find it profitable to select a subject every morning for meditation during the day; and whenever your thoughts are not necessarily occupied with your ordinary employments, turn them to that subject. Labor after clear and practical views of the truth; and see that your _heart_ is affected by it. One of the most difficult points of Christian experience is, to keep the mind habitually upon heavenly things, while engaged in worldly employments, or surrounded by objects which affect the senses. Satan will be continually seeking to divert your mind; but do not be discouraged by his assaults. The Bible saints were _fervent_ in spirit, even while engaged in business; and we have accounts of pious persons in every age, who have been like them. A heavenly mind is worth the labor of years. Do not rest till you obtain it. Meditation should also be mixed with the reading of God's word. It requires the closest meditation to understand the Holy Scriptures, and apply them to our hearts.