Jesus was alluding to an Old Testament view of the Messianic kingdom in which all people are taught directly by God. He was stressing the importance of not merely hearing, but learning. We are taught by God through the Bible, our experiences, the thoughts the Holy Spirit brings, and relationships with other Christians. Are you open to God’s teaching?
As it is written in the Scriptures, ‘They will all be taught by God.’ Everyone who listens to the Father and learns from him comes to me. (John 6:45 NLT)