Then the earth shook and trembled; the foundations also of the hills moved and were shaken, because he was angry.
All Commentaries on Psalms 18:7 Go To Psalms 18
Augustine of Hippo
8. "And the earth was moved and trembled" (ver. 7). When the Son of Man was thus glorified, sinners were moved and trembled. "And the foundations of the mountains were troubled." And the hopes of the proud, which were in this life, were troubled. "And were moved, for God was wroth with them." That is, that the hope of temporal goods might have now no more establishment in the hearts of men.