Deism is such weak sauce; totally unaccountable for free will. Further, Jefferson postulated deism as one part of his (somewhat unfortunately) ever-shifting view of God he espoused during his lifetime -- however, his postulation, per se, is entirely apropos of the Enlightenment period.
Well, it is his free will to deny his own free will.
“totally unaccountable for free will”
In my belief system man has a “free will.” However, his free will has been so corrupted by Adam’s fall, that left on his own, he will never chose to believe in the God of the Bible and Jesus Christ, God incarnate. In other words, man’s free will is so corrupted as to no longer be free will....he will only and instinctly not believe or believe anything other than the Gospel of Jesus Christ.
Thus, it takes a supernaturnal work of the Holy Spirit to correct that corruption by making the person aware of his dreadfully lost status and his desparate need of a savior (this is what being born again really means - regeneration - the dead being made alive) He will be compeled to shun his own righteousness and seeking to win heaven by doing “good” or “refraining” from “bad.” He will realize that it is Christ and Christ Jesus alone that can save him by what He (Christ) did. The man will irressistibly be drawn to the only source of salvation and further given the ability to believe, savingly, in it.