George Haydock's Catholic Commentary
Psalms 118:89
In heaven. In the faithful angels, (St. Augustine) or Jesus Christ. (Bellanger.) --- The promises seem not to have their effect here; but they will in heaven. (Berthier) --- The word of God is as unchangeable as heaven. (Calmet) --- The psalmist praises God's works, which observe the order established by him. (Worthington) --- How then can we doubt but his law and promises shall be accomplished? (Haydock)