The voice of the LORD breaks the cedars; yea, the LORD breaks the cedars of Lebanon.
Read Chapter 29
Augustine of Hippo
5. "The Voice of the Lord breaking the cedars" (ver. 5). The Voice of the Lord humbling the proud in brokenness of heart. "The Lord shall break the cedars of Libanus." The Lord by repentance shall break them that are lifted on high by the splendour of earthly nobility, when to confound them He shall have "chosen the base things of this world," in the which to display His Divinity.
Libanus. Which were the most famous. (Haydock)
Storms often tear up trees by the roots. (Calmet)
The effects of the gospel and of penance, may be described, or the terrors of the last day, when Jesus Christ will destroy the proud. (Berthier)