The interpretation timeline
Acts 8:21 Douay-Rheims

Thou hast no part nor lot in this matter. For thy heart is not right in the sight of God.

A.D. 220 – 1871 7 witnesses

Patristic

before A.D. 750
220
A.D.
Tertullian Patristic
c. A.D. 150–220
“If you did know it, you ought to have known this also, that you should have nothing more to do with that profession of yours which, of itself, fore-chants the climacterics of others, and might instruct you of its own danger. There is no part nor lot for you in that system of yours. He cannot hope for the kingdom of the heavens, whose finger or wand abuses the heaven.”
Source
235
A.D.
Hippolytus of Rome Patristic
c. A.D. 170–235
“But that very sapient fellow Simon makes his statement thus, that there is an indefinite power, and that this is the root of the universe. And this indefinite power, he says, which is fire, is in itself not anything which is simple, as the gross bulk of speculators maintain, when they assert that there are four incomposite elements, and have supposed fire, as one of these, to be uncompounded. Simon, on the other hand, alleges that the nature of fire is twofold; and one portion of this twofold (nature) he calls a something secret, and another (a something) manifest. And he asserts that the secret is concealed in the manifest parts of the fire, and that the manifest parts of the fire have been produced from the secret. And he says that all the parts of the fire, visible and invisible, have been supposed to be in possession of a capacity of perception. The world, therefore, he says, that is begotten, has been produced from the unbegotten fire. And it commenced, he says, to exist thus: The Unbegotten One took six primal roots of the principle of generation from the principle of that fire. For he maintains that these roots have been generated in pairs from the fire; and these he denominates Mind and Intelligence, Voice and Name, Ratiocination and Reflection. And he asserts that in the six roots, at the same time, resides the indefinite power, which he affirms to be Him that stood, stands, and will stand. And when this one has been formed into a figure, He will, according to this heretic, exist in the six powers substantially and potentially. And He will be in magnitude and perfection one and the same with that unbegotten and indefinite power, possessing no attribute in any respect more deficient than that unbegotten, and unalterable, and indefinite power. If, however, He who stood, stands, and will stand, continues to exist only potentially in the six powers, and has not assumed any definite figure, He becomes, says Simon, utterly evanescent, and perishes. And this takes place in the same manner as the grammatical or geometrical capacity, which, though it has been implanted in man's soul, suffers extinction when it does not obtain (the assistance of) a master of either of these arts, who would indoctrinate that soul into its principles. Now Simon affirms that he himself is He who stood, stands, and will stand, and that He is a power that is above all things. So far, then, for the opinions of Simon likewise.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“How was it then that they did not strike him dead, as they did Ananias and Sapphira? Because even in the old times, he that gathered sticks on the sabbath-day was put to death as a warning to others and in no other instance did any suffer the same fate. So too on the present occasion, "Peter said to him, Thy money perish, because thou hast imagined that the gift of God is to be purchased with money." Why had not these received the Holy Ghost, when baptized? Either because Philip kept this honor for the Apostles; or, because he had not this gift to impart; or, he was one of the Seven: which is rather to be said. "Thy money with thee to perdition": since thou hast not used it as it ought to be used. These are not words of imprecation, but of chastisement. "To thee," he says, be it to thee: being such. As if one should say, Let it perish along with thy purpose. Hast thou so mean conceptions of the gift of God, that thou hast imagined it to be altogether a thing of man? It is not this. Wherefore also Peter well calls the affair a gift: "Thou hast thought that the gift of God may be purchased with money." Dost thou observe how on all occasions they are clean from money? "For thine heart is not right in the sight of God." Dost thou see how he does all of malice? To be simple, however, was the thing needed. For had it been done with simplicity, he would have even welcomed his willing mind. Seest thou that to have mean conceptions of great things is to sin doubly?”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Repent therefore of this thy wickedness,.... For a great piece of wickedness it was, to offer money for the gift of the Holy Ghost, and to imagine, that could be purchased with money; and what made the wickedness still greater was, the evil design he had in this, to advance himself in opposition to Christ and his apostles, as he afterwards did; and when the apostle puts him upon repentance, his view is to show the heinousness of his crime, the need he stood in of repentance, and that without it, his case must be miserable: and pray God, if perhaps the thought of thine heart may be forgiven thee; though he was in a state of nature, the apostle exhorts him to the duty of prayer; for prayer is a natural duty, and binding upon all men, though none but a spiritual man can perform it in a spiritual way: and though this sin of Simon's was a very heinous one, and came very near unto, and looked very much like the sin against the Holy Ghost, yet it was not the unpardonable one; it might be pardoned by the grace of God, and through the blood of Christ; and therefore Peter, who wished his salvation and not his damnation, put him upon prayer for it; which was possible, though difficult, but not certain: the apostle says not this, as doubting; if it was a case wholly to be despaired of, then he would not have directed him to the means; and yet the wickedness was so horribly great, and he in such a wretched hardened state, that there was no great hope or expectation of his repentance, and so of the application of pardon to him: however, this advice was not given ironically: Peter was too grave and serious to speak sarcastically, or break a jest upon a man in such circumstances; whom no doubt he heartily pitied, though he abhorred his sin: the Syriac version renders it, "the deceit of thine heart": and the Ethiopic version, "the evil thought of thine heart"; and such it was.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Thou hast neither part nor lot in this matter - Thou hast no part among the faithful, and no lot in this ministry. That the word κληρος, which we translate lot, is to be understood as implying a spiritual portion, office, etc., see proved in the note on Num 26:55 (note). Thy heart is not right - It is not through motives of purity, benevolence, or love to the souls of men, that thou desirest to be enabled to confer the Holy Ghost; it is through pride, vain glory, and love of money: thou wouldest now give a little money that thou mightest, by thy new gift, gain much.”
Source
1849
A.D.
1871
A.D.
1871
“Thou hast neither part nor lot . . . thy heart is not fight, &c.--This is the fidelity of a minister of Christ to one deceiving himself in a very awful manner.”
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.