The burden of this psalm is the twofold revelation of Jehovah. He is revealed in Nature and in law. Yet in Nature Jehovah is revealed as God and not by those especial qualities suggested by the great name Jehovah. Moreover, it is in the law that God is revealed as Jehovah rather than by the facts of His wonder-working power. This differentiation is justified by the names as used. In the first six verses, which deal with the Nature revelation, the name 'God" appears once and "Jehovah" not at all. In the last eight verses, which speak of the law revelation, the name "Jehovah" appears seven times and God not at all.
It is one Sovereign Ruler who is revealed and He is referred to by name eight times in all. Nature speaks to Nature. Day has its message to itself and night to itself. Without articulation the message is constantly delivered in the circuit of the sun. To man, higher than all Nature (see Psa 8:1-9), an articulate message is given. A word is spoken. It is the great law of Jehovah, "perfect," "sure," "right," "pure," 'clean," "true," "righteous." Mark well the sevenfold description and how perfectly all the needs of man are met. Great and wondrous, God is known in Nature by Nature through the speech of a great silence, and is revealed to man in messages which answer all his questioning and govern all his ways.