Why should you live in a way that pleases God? Answer: Because of the greatness of God’s love for you (His wonderful blessings in Christ).
How do you do so? Answer: Live your life according to God’s great love for you (“walk worthy of your calling”).
The Apostle Paul expanded upon these two important points in his letter to the Ephesians (and to us as well). The sermon (available below) is intended to introduce you to this letter and begin to expound the truths proclaimed in this letter of God’s grace.