The Lord is my rock my fortress and my savior – Psalm 18:2
The psalmist had been rescued by God from all his enemies; so he was able to look back at the past, and to feel that all his troubles had been removed. It was probably during this period of his life that he composed this song.
He is my rock – David saw that his only safety came from the Lord, and that nothing could be more reliable than his trust in Him. In fact, this is a common description of God in the Psalms.
My fortress – This expression suggests that the Lord was not only a rock, but also a tower, citadel, and buckler; and this is very true. It is a natural consequence of this that in a general song of praise, it was proper that the psalmist should refer particularly to these dangers.
And he scattered them – Herder and DeWette, refer this to the lightnings that had so often accompanied the storms; but in other words it might mean that those enemies which were disposed to resist David’s rescue were scattered around him, and defeated by the interposition of God. The idea seems to be that, as the psalmist had been acquitted of all his enemies by the divine interposition, they were now scattered about him; and therefore, it was only fair that they should be so recognized in this psalm.
The Lord is my strength – He vindicates his people, punishes their enemies, and heals their wounds. He is the only true God, and He is the only one who can give us hope of victory over death. The sting of death, which comes from sin, has been removed by Jesus’ sacrificial death on the cross.
