# that you will walk in a manner that is worthy of the Lord and that pleases him

"that you will live as God expects you to and so please him" 

# by bearing fruit in every good work and growing

"by making sure that all of your good works please God and people and growing". Paul is speaking of the Colossian believers as if they were trees or plants that grow and bear fruit. 

# growing in the knowledge of God

"always learning more about God"