Psalms 146 - Dummelow's Commentary on the Bible

Here begins the final group, Psalms 146-150, known as the 'Hallelujah' Pss., because each begins and ends with that word, meaning, 'Praise ye the Lord.' They sum up the joy of the returned exiles, and form a fitting doxology to the Psalter. They are, of course, specially intended for use in the second Temple. Psalms 146 praises God as the true Helper.

Turneth upside down] lit.' causeth to turn aside' (into the trackless desert, where it disappears).