I've retrieved the following from this blog:
Classical Arminianism
*** what's [in brackets] are Billy Birch's (blog owner)
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Hermas (150 CE) wrote: "To those whose heart He saw would become pure and obedient to Him, He gave the power to repent with the whole heart [election based on foreknowledge]."
Justin Martyr (160 CE) wrote: "Lest some suppose, from what has been said by us, that we say that whatever occurs happens by a fatal necessity [a denial of exhaustive determinism], because it is foretold as known beforehand, this too we explain . . . And again, unless the human race has the power of avoiding evil and choosing good by free choice, they are not accountable for their actions."
Tatian (160 CE) wrote: "We were not created to die [a denial of supralapsarianism]. Rather, we die by our own fault. Our free will has destroyed us. We who were free have become slaves. We have been sold through sin. Nothing evil has been created by God. We ourselves have manifested wickedness. But we, who have manifested it, are able again to reject it."
Melito (170 CE) wrote: "There is, therefore, nothing to hinder you from changing your evil manner of life, because you are a free man."
Irenaeus (180 CE) wrote: "But man, being endowed with reason, and in this respect similar to God, having been made free in his will [classical Arminian thought], and with power over himself, is himself his own cause that sometimes he becomes wheat, and sometimes chaff."
Clement of Alexandria (195 CE) wrote: "God ministers eternal salvation to those who cooperate for the attainment of knowledge and good conduct. Since what the commandments direct are in our own power, along with the performance of them, the promise is accomplished . . . Therefore, all having been called, those who are willing to obey have been named 'the called.' For there is no unrighteousness with God . . . To these, prophecy says, 'If you are willing and hear me, you will eat the good things of the land,' proving that choice or refusal depends on ourselves . . We . . . have believed and are saved by voluntary choice."
Tertullian (207 CE) wrote: "I find, then, that man was constituted free by God. He was master of his own will and power . . . For a law would not be imposed upon one who did not have it in his power to render that obedience which is due to law. Nor again, would the penalty of death be threatened against sin, if a contempt of the law were impossible to man in the liberty of his will . . . Man is free, with a will either for obedience or resistance" [a denial of irresistible grace].
Origen (225 CE) wrote: "The apostle in one place does not purport that becoming a vessel to honor or dishonor depends upon God [Rom. 9:21-22; a blatant rejection of Calvinistic thought]. Rather, he refers everything back to ourselves, saying, 'If, then, a man purges himself, he will be a vessel to honor, sanctified, fit for the Master's use, and prepared for every good work' [2 Tim. 2:20-21]."
Hippolytus (225 CE) wrote: "The Word promulgated the divine commandments by declaring them. He thereby turned man from disobedience. He summoned man to liberty through a choice involving spontaneity ~ not by bringing him into servitude by force of necessity [rejection of irresistible grace]."
Cyprian (250 CE) wrote: "The liberty of believing or of not believing is placed in free choice."
Methodius (290 CE) wrote, "God is good and wise. He does what is best. Therefore, there is no fixed destiny" [a denial of unconditional election].
Lactantius (304-313 CE), during those years, wrote: "He who gives commandments for life should remove every method of excuse ~ so He can impose upon men the necessity of obedience. Not by any constraint, but by a sense of shame. Yet, He should do it in a way to leave them freedom, so that a reward may be appointed for those who obey. That is because it was in their power not to obey ~ for it was in their power to obey if they wished."
The Disputation of Archelaus and Manes (320 CE) reads: "Rational creatures have been entrusted with free will. Because of this, they are capable of converting" [a thought made also by Charles Finney].
Alexander of Alexandria (324 CE) wrote: "Natural will is the free faculty of every intelligent nature, as having nothing involuntary pertaining to its essence."
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I haven't checked, but some quotes may be repeats from earlier.
Also, I don't consider myself Arminian and, thus, may or may not agree with Billy Birch's 'in brackets'.
Thanks!