5:3 A dream - When men are oppressed with business in the day, they dream of it in the night. Is known - It discovers the man to be a foolish, and rash, and inconsiderate man. Of words - Either in prayer, or in vowing, by making many rash vows, of which he speaks ver.4, 5, 6, and then returns to the mention of multitude of dreams and many words, ver.7, which verse may be a comment upon this, and which makes it probable that both that and this verse are to be understood of vows rather than of prayers.
5:1-3 Address thyself to the worship of God, and take time to compose thyself for it. Keep thy thoughts from roving and wandering: keep thy affections from running out toward wrong objects. We should avoid vain repetitions; copious prayers are not here condemned, but those that are unmeaning. How often our wandering thoughts render attendance on Divine ordinances little better than the sacrifice of fools! Many words and hasty ones, used in prayer, show folly in the heart, low thoughts of God, and careless thoughts of our own souls.