The interpretation timeline
Mark 7:1 Douay-Rheims

And there assembled together unto him the Pharisees and some of the scribes, coming from Jerusalem.

A.D. 420 – 1832 4 witnesses 7 excerpts

Patristic

before A.D. 750
420
A.D.
Jerome Patristic
c. A.D. 347–420
“(in Matt. 15) Wonderful is the folly of the Pharisees and Scribes; they accuse the Son of God, because He keeps not the traditions and precepts of men. But common is here put for unclean; for the people of the Jews, boasting that they were the portion of God, called those meats common, which all made use of.”
735
A.D.
Bede the Venerable Patristic
c. A.D. 672–735
“(in Marc. 2, 29) The people of the land of Gennesareth, who seemed to be unlearned men, not only come themselves, but also bring their sick to the Lord, that they may but succeed in touching the hem of His garment. But the Pharisees and Scribes, who ought to have been the teachers of the people, run together to the Lord, not to seek for healing, but to move captious questions; wherefore it is said, Then there came together unto him the Pharisees and cerlain of the Scribes, coming from Jerusalem; and when they saw some of his disciples eat bread with common, that is, with unwashen hands, they found fault.”
Source
“(ubi sup.) For taking the spiritual words of the Prophets in a carnal sense, they observed, by washing the body alone, commandments which concerned the chastening of the heart and deeds, saying Wash you, make you clean; (Isa. 1:16) and again, Be ye clean that bear the vessels of the Lord. (Isa. 52:11) It is therefore a superstitious human tradition, that men who are clean already, should wash oftener because they eat bread, and that they should not eat on leaving the market, without washing. But it is necessary for those who desire to partake of the bread which comes down from heaven, often to cleanse their evil deeds by alms, by tears, and the other fruits of righteousness. It is also necessary for a man to wash thoroughly away the pollutions which he has contracted from the cares of temporal business, by being afterwards intent on good thoughts and works. In vain, however, do the Jews wash their hands, and cleanse themselves after the market, so long as they refuse to be washed in the font of the Saviour; in vain do they observe the washing of their vessels, who neglect to wash away the filthy sins of their bodies and of their hearts. It goes on: Then the Scribes and Pharisees asked him, Why walk not thy disciples after the tradition of the elders, but eat bread with common hands?”
Source
“(ubi sup.) The sense of the word honour in Scripture is not so much the saluting and paying court to men, as alms-giving, and bestowing gifts; honour, says the Apostle, widows who are widows indeed. (1 Tim. 5:3.)”
“(ubi sup. v. Hier. in Matt. 15. et Orig. in Matt. Tom. xi. 9) The passage may in a few words have this sense, Every gift which I have to make, will go to do you good; for ye compel children, it is meant, to say to their parents, that gift which I was going to offer to God, I expend on feeding you, and does you good, oh father and mother, speaking this ironically. Thus they would be afraid to accept what had been given into the hands of God, and might prefer a life of poverty to living on consecrated property.”
Source

Post-Reformation

c. 1650 – 1900
1832
A.D.
Adam Clarke Methodist
1762–1832
“Came from Jerusalem - Probably for the express purpose of disputing with Christ, that they might entangle him in his talk. Malice and envy are never idle - they incessantly hunt the person they intend to make their prey.”

Undated

date unknown
date
unknown
“Mystically, again, the disciples eating with unwashed hands signifies the future fellowship of the Gentiles with the Apostles. The cleansing and washing of the Pharisees is barren; but the fellowship of the Apostles, though without washing, has stretched out its branches as far as the sea.”
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.