The interpretation timeline
Acts 18:15 Douay-Rheims

But if they be questions of word and names, and of your law, look you to it: I will not be judge of such things.

A.D. 407 – 1871 5 witnesses

Patristic

before A.D. 750
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“"Saying, This fellow seduceth men contrary to the law to worship God. And when Paul was about to open his mouth, Gallio said: If indeed it were any wrong-doing or wicked lewdness, O ye Jews, reason would that I should bear with you. But if it be a question of words and names, and of your law, look ye to it; for I will be no judge of such matters. And he drave them from the judgment-seat." This Gallio seems to me to have been a sensible man. Thus observe, when these had said, "Against the law he seduceth men to worship God," he "cared for none of these things": and observe how he answers them: "If indeed it were" any matter affecting the city, "any wrong-doing or wicked lewdness," etc. And observe how prudent he is: for he does not say straightway, I care not, but, "If," says he, "it were a matter of wrong-doing or wicked lewdness, O ye Jews, reason would that I should bear with you; but if it be a question of doctrine and words and of your law, see ye to it, for I do not choose to be a judge of such matters." He taught them that not such are the matters which crave a judicial sentence, but they do all things out of order. And he does not say, It is not my duty, but, "I do not choose," that they may not trouble him again. Thus Pilate said in the case of Christ, "Take ye Him, and judge him according to your law." But they were just like men drunken and mad.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And he drave them from the judgment seat. He would not hear, and try the cause; but dismissed them with threatening them, if ever they brought an affair of that kind to him any more. And he drave them from the judgment seat. He would not hear, and try the cause; but dismissed them with threatening them, if ever they brought an affair of that kind to him any more. Acts 18:17 act 18:17 act 18:17 act 18:17Then all the Greeks took Sosthenes,.... These were not the Greeks or Gentiles that were devout persons, or converted to Christianity, and were on the side of Paul, and fell foul on Sosthenes, as being his chief accuser; for this is not agreeably to the spirit and character of such persons, but the profane and unconverted Greeks, who observing that Gallio sent the Jews away, with some resentment and contempt, were encouraged to fall upon the principal of them, and use him in a very ill manner; it is very likely that this person was afterwards converted, and is the same that is mentioned in Co1 1:1. The name is Greek, and there is one of this name mentioned among the executors of Plato's will (w). This man was now chief ruler of the synagogue; chosen in, very likely, upon Crispus becoming a Christian, and being baptized: and beat him before the judgment seat; of Gallio; before he and his friends could get out of court: and Gallio cared for none of these things; which might not be owing to any sluggishness in him, but to an ill opinion he had of the Jews, as being a turbulent and uneasy people, and therefore he connived at some of the insolencies of the people towards them; though it did not become him, as a magistrate, to act such a part, whose business it was to keep the public peace, to quell disorders, to protect men's persons, and property, and prevent abuse and mischief, and to correct and punish for it. The Arabic version renders it, "and no man made any account of Gallio"; they did not fear his resentment, he having drove the Jews from the judgment seat. (w) Laert. l. 3. in Vita Platon.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“But if it be a question of words - Περι λογου, Concerning doctrine and names - whether the person called Jesus be the person you call the Messiah. And of your law - any particular nicety, concerning that law which is peculiar to yourselves: Look ye to it - settle the business among yourselves; the Roman government does not meddle with such matters, and I will not take upon me to - decide in a case that does not concern my office. As if he had said: "The Roman laws give religious liberty to Jews and Greeks; but, if controversies arise among you on these subjects, decide them among yourselves, or dispute about them as much as you please." A better answer could not be given by man; and it was highly becoming the acknowledged meekness, gentleness, and benevolence of this amiable man. He concluded that the state had no right to control any man's religious opinion; that was between the object of his worship and his own conscience; and therefore he was not authorized to intermeddle with subjects of this nature, which the law left to every man's private judgment. Had all the rulers of the people in every country acted as this sensible and benevolent Roman, laws against liberty of conscience, concerning religious persecution, would not be found to be, as they not are, blots and disgraces on the statute books of almost all the civilized nations of Europe.”
Source
1871
A.D.
1871
“if it be a question of words and names, and of your law . . . I will be no judge, &c.--in this only laying down the proper limits of his office.”

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“But if they be questions of a word. Now assuredly of one declared and narrated, that is, of the Gospel: and of names, (Jesus) and (of God), or (of God the Father). In the Greek: All the Greeks laying hold on Sosthenes, etc.”
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.