The interpretation timeline
Genesis 19:18 Douay-Rheims

And Lot said to them: I beseech thee my Lord,

A.D. 99 – 1871 5 witnesses

Patristic

before A.D. 750
99
A.D.
Clement of Rome Patristic
d. A.D. 99
“On account of his hospitality and godliness, Lot was saved out of Sodom when all the country round was punished by means of fire and brimstone, the Lord thus making it manifest that He does not forsake those that hope in Him, but gives up such as depart from Him to punishment and torture. [Genesis 19:15-26, 2 Peter 2:6-9] For Lot's wife, who went forth with him, being of a different mind from himself, and not continuing in agreement with him [as to the command which had been given them], was made an example of, so as to be a pillar of salt unto this day. This was done that all might know that those who are of a double mind, and who distrust the power of God, bring down judgment on themselves and become a sign to all succeeding generations.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
אל נא אדני OH NOT SO, MY LORD — Our Rabbis said, that this name (Lord) is holy (i. e. refers to God; Shevuot 35b), since it is said regarding him (i.e. regarding the one who was addressed by this name) (v. 19) “[and thou hast magnified thy mercy …] in keeping alive my soul”. Therefore it must refer to Him who has the power to kill or keep alive. Indeed the Targum renders it, “I beg of thee, O Lord)” אל נא OH NOT SO — do not tell me to escape to the mountain. נא — This word is used when a request is being made.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And Lot said unto them,.... Supposing three present, not observing that the two angels had left him that had brought him thither; though it is but to one of them he addresses himself, even to him who had bid him make the best of his way to the mountain, as appears by what follows: oh, not so, my Lord; that is, let me not be obliged to go so far as to the mountain; though R. Samuel takes it to be an assent, and interprets the phrase of his being willing: but this does not agree with what follows, and is rejected by Aben Ezra, who relates it; and who also observes, that the word "Lord" is a common name, that is, that belongs to a creature; but Jarchi says their Rabbins take it to be an holy name, that is, a name that belongs to God, and gives a good reason why it is so to be understood here; since the person spoken to had it in his power to kill or make alive, to save or destroy, as the following words show; so Ben Melech and the Targum of Oukelos render it by Jehovah.”
Source
1849
A.D.
1774–1849
“My lord, addressing himself to the angel, who led him and his wife. (Menochius)”
1871
A.D.
1871
“Lot said . . . Oh, not so, my Lord . . . I cannot escape to the mountain--What a strange want of faith and fortitude, as if He who had interfered for his rescue would not have protected Lot in the mountain solitude.”
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.