Following the Lord Fully
When the soul is thus conscious of "following the Lord fully," there is a peculiar dread of wandering. In a careless or halfhearted state, wanderings are not watched, so long as they do not lead to any open declension. Secret prayer will be hurried over, worldly thoughts unresisted, waste of time in frivolous pursuits indulged, without much concern. Not so, when the heart is fully in pursuit of its object. There is a carefulness, lest wandering thoughts should become habitual. There is a resistance of the first step, that might lead into a devious path. The soul remembers the "wormwood and the gall" (Lam 3:19), "the roaring lion," and the devouring wolf; and in the recollection of the misery of its former wandering, dreads any departure from the Shepherd's fold. This blessed state of mind the flock of Christ should cherish with godly jealousy. Yet let it be remembered, that daily progress in the heavenly walk is not maintained by yesterday's grace. Humble and dependent prayer must fetch in a fresh supply continually—"O let me not wander from thy commandments." 'Lord, I feel my heart so prone to wander. My affections are often scattered to the ends of the earth. "Unite my heart to fear thy name."
Charles Bridges
An Exposition of Psalm 119
Part 2: Psalm 119:10