The interpretation timeline
Psalm 56:11 Douay-Rheims

For thy mercy is magnified even to the heavens: and thy truth unto the clouds.

A.D. 430 – 1849 3 witnesses

Patristic

before A.D. 750
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“Giving therefore to Him thanks, let us say with the same Psalm the last verses, which sometime since too I have said, "Be Thou exalted above the Heavens, O God, and above all the earth Your glory." For this to Him the Prophet said so many years before; this now we see; this therefore let us also say.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Be thou exalted, O God, above the heavens,.... As Christ now is at the Father's right hand, and who is God over all, blessed for ever; let thy glory be above all the earth; as it is above all the men on earth and angels in heaven. This is repeated from Psa 57:5; See Gill on Psa 57:5, and shows the vehemency of his desire after these things, and how much his heart was set upon them. Next: Psalms Chapter 58”
Source
1849
A.D.
1774–1849
“Clouds. They are exceedingly great. (Haydock) — Christ has mounted to the highest heavens, and his apostles have preached (Calmet) his saving truths, which, like clouds, render the earth fruitful in good works. (Haydock)”
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.