O LORD God of hosts, who is a strong LORD like unto thee? or to thy faithfulness round about thee?

Wesley's Notes

89:8 Round thee - Like a girdle encompassing thee. It appears in all thy words and works.

Jamieson-Fausset-Brown Bible Commentary

8-14. To illustrate His power and faithfulness examples are cited from history. His control of the sea (the most mighty and unstable object in nature), and of Egypt (Ps 87:4), the first great foe of Israel (subjected to utter helplessness from pride and insolence), are specimens. At the same time, the whole frame of nature founded and sustained by Him, Tabor and Hermon for "east and west," and "north and south," together representing the whole world, declare the same truth as to His attributes.

Matthew Henry's Concise Commentary

89:5-14 The more God's works are known, the more they are admired. And to praise the Lord, is to acknowledge him to be such a one that there is none like him. Surely then we should feel and express reverence when we worship God. But how little of this appears in our congregations, and how much cause have we to humble ourselves on this account! That almighty power which smote Egypt, will scatter the enemies of the church, while all who trust in God's mercy will rejoice in his name; for mercy and truth direct all he does. His counsels from eternity, and their consequences to eternity, are all justice and judgment.