Psalms 115 — Jamieson–Fausset–Brown
115:1–3
1-3. The vindication of God's mercy and faithfulness (Psa 25:10; 36:6) is the "glory" of His "name," which is desired to be illustrated in the deliverance of His people, as the implied mode of its manifestation. In view of the taunts of the heathen, faith in His dominion as enthroned in the heaven (Psa 2:4; 11:4) is avowed.
115:4–7
4-7. (Compare Is 40:18-20; 44:9-20).
115:8
8. every one that trusteth--they who trust, whether makers or not.
115:9–13
9-13. The repetitions imply earnestness.
115:14
14. Opposed to the decrease pending and during the captivity.
115:15–17
15-17. They were not only God's peculiar people, but as living inhabitants of earth, assigned the work of His praise as monuments of divine power, wisdom, and goodness.
115:18
18. Hence let us fulfil the purpose of our creation, and evermore show forth His praise.