Here's a classic point from John Chrysostom, Homiliae in Joannem 46: Ver. 44. “No man can come unto Me, except the Father which hath sent Me draw Him.” The Manichaeans spring upon these words, saying, “that nothing lies in our own power”; yet the expression showeth that we are masters of our will. “For if a man cometh to Him,” saith some one, “what need is there of drawing?” But the words do not take away our free will, but show that we greatly need assistance. And He implieth not an unwilling comer, but one enjoying much succor. Then He showeth also the manner in which He draweth; for that men may not, again, form any material idea of God, He addeth, Ver. 46. “Not that any man hath seen God, save He which is of God, He hath seen the Father.” “How then,” saith some one, “doth the Father draw?” This the Prophet explained of old, when he proclaimed beforehand, and said, Ver. 45. “They shall all be taught of God.” (Isa. 54:13) Seest thou the dignity of faith, and that not of men nor by man, but by God Himself they shall learn this? And to make this assertion credible, He referred them to their prophets. “If then ‘all shall be taught of God,’ how is it that some shall not believe?” Because the words are spoken of the greater number. Besides, the prophecy meaneth not absolutely all, but all that have the will. For the teacher sitteth ready to impart what he hath to all, and pouring forth his instruction unto all. ===== Now I find it interesting that Augustine came from Manichaeism, and apparently some of old Mani's ideas never could desert his mind. All the expositors and apologists in the second and third centuries say the same thing regarding man's free will, that the idea that he has none is heretical.