But we know these things because God has revealed them to us by his Spirit, and his Spirit searches out everything and shows us even God's deep secrets.
No one can know what anyone else is really thinking except that person alone, and no one can know God's thoughts except God's own Spirit.
And God has actually given us his Spirit (not the world's spirit) so we can know the wonderful things God has freely given us.
When we tell you this, we do not use words of human wisdom. We speak words given to us by the Spirit, using the Spirit's words to explain spiritual truths.
References for 1 Corinthians 2:13