The interpretation timeline
Sirach 36:16 Douay-Rheims

Fill Sion with thy unspeakable words, and thy people with thy glory.

1849 – 1863 3 witnesses

Post-Reformation

c. 1650 – 1900
1849
A.D.
1863
A.D.
1796–1863
“G. "Fill Sion to extol thy words." P. "Fill Sion with Thy unspeakable oracles;" fill it with blessings that the truth of the promises may be manifested : let thy praises resound there.”

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“Sion, etc. The knowledge of Scripture, in which is preached the unspeakable power of God.”
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.