From the early Church Fathers to now.
“The mouth of a strange woman is a deep pit: he whom the Lord is angry with, shall fall into it.”
“The mouth of one speaking ill is a great pit, a steep precipice for the innocent, but steeper for one of ill will. An innocent person, though easily credulous, falls quickly, but when he has fallen rises again. The slanderer is thrown headlong by his own acts, from which he will never emerge or escape.”
“"A deep pit is the mouth of a strange woman," etc. He who willingly embraces the words or kisses of a harlot, as if he already knocks at the door of the infernal pit, will soon be drowned if he does not withdraw his foot cautiously, if he does not restrain his other members from vices of the penal pit, into which no one falls unless he is a son of wrath.”
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.