John Calvin Commentary Psalms 130:6

"My soul [waiteth] for the Lord More than watchmen [wait] for the morning; [Yea, more than] watchmen for the morning." — Psalms 130:6 (ASV)

My soul hath waited for the Lord before the watchers of the morning. In this verse, he expresses both the ardor and the perseverance of his desire. In saying that he anticipated the watchmen, he shows by this comparison with what diligence and eagerness he longed for God. And the repetition is a proof of his perseverance, for there is no doubt that by this he intended to express an uninterrupted continuation of the same course, and consequently, perseverance.

Both these qualities in his devotion are worthy of attention, for it is all too clear how slow and cold we are in lifting our minds to God, and also how easily we are shaken and even fall at every little blast of wind.

Furthermore, since the night watches were in ancient times usually divided into four parts, this passage may be explained as implying that just as the night watchmen, who keep watch by turns, are careful in looking for the morning to dawn, so the Prophet looked to God with the greatest mental attentiveness. However, the more natural interpretation seems to be that just as in the morning the gatekeepers are more alert than anyone else and are the earliest to rise to be at their assigned posts, so the Prophet’s mind quickly hastened to seek God.

The repetition, as I have already observed, shows that he remained with his gaze perseveringly fixed on his object. We must always be careful not to let our fervor diminish through the weariness of delay, should the Lord keep us in suspense for any length of time.