Notice use of the word provoke in the verse. Part of our job as Christians is to encourage, push, or prod each other along in the Christian life. Young Christians benefit from a discipleship relationship with a more mature Christian that can guide them into maturity. A good teacher will challenge us to push further into our relationship with Christ. Growth in understanding will come to the Christian that presses on to a deeper relationship with Christ.
Understanding includes discernment, too.
But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil. It is from the meat of God s Word that we learn discernment. Bible study, fellowship, discipleship and prayer will all lead to deeper understanding of the Word, the world and what God s purpose for us is. Those who seek understanding make their walk with God top priority. Many people say that they would read the Bible, go to church, pray or help others if they had more time.