John Gills Exposition of the Bible Commentary - Psalms 18:7
Then the earth shook and trembled ,.... As it did quickly after Christ called upon the Lord, and cried to his God upon the cross, Matthew 27:50 ; and so some time after, when his people were praying together, the place where they were assembled was shaken, Acts 4:31 ; as a token of God's presence being with them: and the shaking and trembling of the earth is often used as a symbol of the presence of God, and of the greatness of his majesty; as when he brought the children of Israel... read more
Matthew Henry's Complete Commentary - Psalms 18:1-19
The title gives us the occasion of penning this psalm; we had it before (2 Sam. 22:1), only here we are told that the psalm was delivered to the chief musician, or precentor, in the temple-songs. Note, The private compositions of good men, designed by them for their own use, may be serviceable to the public, that others may not only borrow light from their candle, but heat from their fire. Examples sometimes teach better than rules. And David is here called the servant of the Lord, as Moses... read more