Charles H. Spurgeon on Psalms 65:2

O thou that hearest prayer. Observe

1. That God is called the hearer of prayers, since he hears, without distinction of persons, the prayers of every one poured forth with piety, not only of the Jews, but also of the Gentiles; as in Ac 10:34-35... It follows, therefore, as a necessary consequence, that all flesh should come to him.

2. To come to God, is not indeed simply tantamount to saying, to draw near to God, to adore, call upon, and worship him, but to come to Zion for the purpose of adoring God; for it was just now said, that God must be praised in Zion, and to this the phrase, to come to God, must be referred. On this account also la is not used, but de, whose proper force is right up to God, or to the place of the habitation of God to render adoration to God. Hermann Venema.