Man is a sentient being who’s fully capable of making decisions on his own, which then leads him to do whatever he chooses: that’s Freedom of Choice or Free Will.
Yet, that does not mean everything man plans will succeed. God is the final arbiter of what He wants to take place on earth.
“In their hearts humans plan their course, but the LORD establishes their steps.” Proverbs 16:9
Many will say, ha-ha!
Now, wait a minute!
Just because God does not allow all of man’s schemes to flourish does not mean that he doesn’t have free will. It only means that God is also free to either stir in him new ideas or throw a monkey wrench into his plans. Man’s still free to keep his course, while God’s also free to keep throwing that pesty wrench as well as insisting on a better course of action.
By the same token, God in His great mercy is also free to stimulate and help those who are living a life void of Christian enlightenment, by whispering in their hearts and inducing them to live out the fruit of the Spirit of His son.
“The fruit of the Spirit is love, joy, peace, forbearance, kindness, goodness, faithfulness, gentleness, and self-control.” Galatians 5: 22-23
Still, man is free to either reject or yield to His mercy.