"Today, if you will hear His voice, harden not your hearts." (Heb 3:15) In this sermon, Bobby Chaw challenges the believer to respond wholeheartedly to God when the Word convicts him. Many believers have "a saved heart but a pagan mind", just like the children of Israel who were physically away from Egypt but kept their old, defeatist thinking. The only way to grow up as a Christian, is to change our old way of thinking; to stop, repent and receive the grace of the Holy Spirit.