2 Peter 3:16-18 speaking in them of these things, in which are some things hard to understand, which untaught and unstable people twist to their own destruction, as they do also the rest of the Scriptures.
You therefore, beloved, since you know this beforehand, beware lest you also fall from your own steadfastness, being led away with the error of the wicked; but grow in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be the glory both now and forever. Amen.
To exercise spiritual discernment to differentiate between the truth and the lies is to grow in the Grace and Knowledge (experience) of Jesus Christ :) Because Grace and Truth is One in Jesus :)