The interpretation timeline
Psalm 144:19 Douay-Rheims

He will do the will of them that fear him: and he will hear their prayer, and save them.

A.D. 430 – 1849 4 witnesses

Patristic

before A.D. 750
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“"He will perform the will of them that fear Him" (ver. 19). He will perform it, He will perform it: though He perform it not at once, yet He will perform it. Certainly if therefore thou fearest God, that thou mayest do His will, behold even He in a manner ministereth to thee; He doeth thy will. "And He shall hear their prayer, and save them." Thou seest that for this purpose the Physician hears, that He may save. When? Hear the Apostle telling thee. "For we are saved in hope: but hope which is seen is not hope: but if what we see not we hope for, then do we with patience wait for it:" "the salvation," that is, which Peter calleth "ready to be revealed in the last time."”
Source

Scholastic

c. 1100 – 1500
1235
A.D.
Radak Jewish
c. 1160–1235
“He will fulfil the desire of those who fear him (רצון יראיו) : He will truly call upon Him and fulfill their desires in what they ask of Him. He will hear their cry and save them from distress that may come upon them in the world or that comes to them to atone for their sins.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“He will fulfil the desire of them that fear him,.... That have the true fear of God put into their hearts; that fear him not with a servile, but godly fear; that fear the Lord and his goodness, and are true worshippers of him in a spiritual and evangelic manner; for the fear of God includes the whole worship of him, private and public: and the Lord grants to such whatever they desire of him, in his fear, under the direction of his spirit, according to his will, and in submission to it. Do they desire good things of him, temporal or spiritual? there is no want of any good thing to them that fear him; how should there, when such great goodness is laid up for them? Do they desire his presence, and the discoveries of his love? the sun of righteousness arises on them that fear his name, and his secrets are with them, and his mercy is upon them from everlasting to everlasting. Do they desire his protection from enemies? the Angel of the Lord encamps round about them, and the Lord himself is their, help and their shield; he also will hear their cry, and will save them; that is, he will hear and answer their prayer, which they put up to him in their distress: they cry to him either mentally or vocally, in their troubles, and his ears are open to their cries, and they enter into them; and he regards them, and saves them out of them; out of their temporal and out of their spiritual troubles; he saves them with a temporal and with an eternal salvation.”
Source
1849
A.D.
1774–1849
“Will. He will obey their voice; (Josue x. 14.) or rather he will grant their requests (Calmet) of eternal happiness. (Berthier)”
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.