John Chrysostom, on Ps 103:34

“Let my speech be acceptable to him: but I will take delight in the Lord.”

“Prayer is a great good: someone conversing with a virtuous person gains no little advantage from the experience, so how much good will the one communing with God be granted? Prayer, after all, is conversing with God. For proof of this, listen to the words of the inspired author: "Let my meditation be pleasing to God," that is, may my words seem acceptable to God. I mean, he is able to offer help before we ask for it, isn't he? Still, he wants so as to take occasion from us for daily bestowing on us providential care from himself. Accordingly, whether we have our requests granted or not, let us persist in asking, and render thanks not only when we gain what we ask but also when we do not. Failure to gain, you see, when that is what God wants, is not worse than succeeding; we do not know what is to our advantage in this regard in the way he does understand. The result is, then, that succeeding or failing we ought to give thanks.”

Imported from an open dataset — not yet checked against the printed edition.