John Calvin Commentary Psalms 9:14

"That I may show forth all thy praise. In the gates of the daughter of Zion I will rejoice in thy salvation." — Psalms 9:14 (ASV)

That I may recount. David’s meaning is simply that he will celebrate the praises of God in all assemblies and wherever the largest crowds gather (for at that time it was customary to hold assemblies at the city gates). But at the same time, there seems to be an allusion to the gates of death, of which he has just spoken, as if he had said, 'After I am delivered from the grave, I will strive to bear testimony in the most public manner to the goodness of God, manifested in my deliverance.'

However, since it is not sufficient to utter the praises of God with our tongues if they do not proceed from the heart, the Psalmist, in the last clause of the verse, expresses the inward joy with which he would engage in this exercise: And that I may rejoice in your salvation; as if he had said, 'I desire to live in this world for no other purpose than to rejoice in having been preserved by the grace of God.'

Under the name “daughter,” as is well known, the Jews referred to a people or city; but here David names the city by its principal part, namely, Zion.