Is it not possible that God has given every man enough light to believe? Can the Holy Spirit lead a man to the truth of the gospel without regeneration happening first? Is this possible with God?
It's possible for God to create a pig that flies.
What does the Bible teach, though?
Does it teach that a man, who is dead in his sins, needs to be made alive again, before he can believe? Does it teach that he has a cold, stony heart that needs to be replaced with a heart of flesh, before he can do anything that pleases God, including exercising faith and repentance?
I've already made a Scriptural case for these positions.
By the way, is your position that every man has the gift of faith? If so, why are unconverted men called unbelievers?
Additionally, in regards to being led to the truth prior to regeneration, I would hold that there is a drawing process which occurs prior to regeneration. I don't think the man is in a regenerate state at that point, though. He is simply being drawn. An animal can be drawn by the scent of dead prey..it doesn't mean that he's already consuming it.
All of these are MONERGISTIC actions though.
Read Romans 3. Does it say anyone is seeking the truth of his own resources? No.
In fact, the unsaved mind is engaged, like a cockroach, in hiding under every rock he can find to avoid God. God scares him to death.
As I have said, like 50 billion times, the heart of stone CANNOT exercise faith and repentance, therefore this necessitates regeneration prior to faith and repentance.
By the way, for those folks who don't understand this, regeneration means to be made alive again. It is a spiritual resurrection...and the sequence of events is clearly described in Ephesians 2:1-10.
Notice that God makes the person alive again, and there is no room for boasting about faith or any other element of salvation because God gives it to the saved person.
It is plain as the nose on one's face yet free-willers will continue, again and again, to assert that their salvation was dependent on them, and not a result of God's monergistic power.