'Hymns of praise are not very frequent at the beginning of the book, but as you read on, you will find more and more of them. It is as though the more you pray, the more you will realize God's goodness. In fact the book closes with five great hymns of praise, the last being the most spectacular of all, Psalm 150. Here we are given a glimpse of what heaven will be like.'
Gordon Wenham, The Psalter Reclaimed, p.43.