The parable of the soils (Matt 13) is direct evidence against the unbiblical doctrine of “libertarian free will” since it is the quality of the soil that determines whether or not it bears fruit. Libertarian free will proponents teach that the choices people make are not determined in any sense by the character or inclinations of the people who make them, which would render this parable meaningless. Fact is, the soil can not choose its nature, therefore it can not choose its fruit. Therefore, the soil must not only be prepared by God (Rom 9:23) the seed will not grow unless the Lord causes it to grow (1 Cor. 3:6).
We all agree that faith is not a work since it points away from self to Christ for salvation, but many make it into a work when they declare that it has its source in a good heart and so turns our eyes back from Christ to a self-generated faith apart from grace alone.
It is “because of him you are in Christ Jesus, who became to us wisdom from God, righteousness and sanctification and redemption, so that, as it is written, “Let the one who boasts, boast in the Lord.” (1 Cor 1:30-31)