§ 12. Thou wilt also prevent the loss of that heat and life thou hast obtained. If thou eat but once in two or three days, thou wilt lose thy strength as fast as it comes. If in holy meditation thou get near to Christ, and warm thy heart with the fire of love, and then come but seldom, thy former coldness will soon return; especially as the work is so spiritual, and against the bent of depraved nature. It is true, the intermixing of other duties, especially secret prayer, may do much to the keeping thy heart above; but meditation is the life of most other duties, and the view of heaven is the life of meditation. § 13. (3.) Choose also the most seasonable time. All things are beautiful and excellent in their season. Unseasonableness may lose the fruit of thy labor, may raise difficulties in the work, and may turn a duty to a sin. The same hour may be seasonable to one, and unseasonable to another. Servants and laborers must take that season which their business will best afford: either while at work, or in travelling, or when they lie awake in the night. Such as can choose what time of the day they will, should observe, when they find their spirits most active and fit for contemplation, and fix upon that as the stated time. I have always found that the fittest time for myself is, the evening, from sun-setting to the twilight. I the rather mention this, because it was the experience of a better and wiser man; for it is expressly said, _Isaac went out to meditate in the field at the eventide_.[351] The Lord's day is exceeding seasonable for this exercise. When should we more seasonably contemplate our rest, than on that day of rest which typifies it to us? It being a day appropriated to spiritual duties, methinks we should never exclude this duty which is so eminently spiritual. I verily think this is the chief work of a Christian Sabbath, and most agreeable to the design of its positive institution. What fitter time to converse with our Lord, than on the Lord's day? What fitter day to ascend to heaven, than that on which he arose from earth, and fully triumphed over death and hell. The fittest temper for a true Christian, is, like John, to _be in the Spirit on the Lord's day_.[352] And what can bring us to this joy in the Spirit, but the spiritual beholding of our approaching glory? Take notice of this, you that spend the Lord's Day only in public worship; your allowing no time to private duty, and therefore neglecting this spiritual duty of meditation, is very hurtful to your souls. You also that have time on the Lord's Day for idleness, and vain discourse, were you but acquainted with this duty of contemplation, you would need no other pastime; you would think the longest day short enough, and be sorry that the night had shortened your pleasure. Christians, let heaven have more share in your Sabbaths, where you must shortly keep your everlasting Sabbath. Use your Sabbaths as