Albert Barnes Commentary Psalms 8:9

"O Jehovah, our Lord, How excellent is thy name in all the earth!" — Psalms 8:9 (ASV)

O Lord our Lord, how excellent ... - Repeating the sentiment with which the psalm opens, as now fully illustrated, or as its propriety is now seen. The intermediate thoughts are simply an illustration of this; and now we see what occupied the attention of the psalmist when, in (Psalms 8:1), he gave utterance to what seems there to be a somewhat abrupt sentiment. We now, at the close of the psalm, see clearly its beauty and truthfulness.