Ephesians 2:1-10 ...you were dead in your transgressions and sins...we were...objects of wrath. But because of his great love for us, God...made us alive...raised us up with Christ... seated us with him... that... he might show the incomparable riches of his grace, expressed in his kindness to us in Christ Jesus. For it is by grace you have been saved, through faith...it is the gift of God... so that no one can boast. For we are God's workmanship, created in Christ Jesus to do good works, which God prepared in advance for us to do.

Notice how Paul preaches the gospel to the Ephesian believers. The emphasis is not on their faith or acceptance of Christ, but in God's work. As a matter of fact, the act of faith is not even mentioned except briefly in verse 8. To me this is the difference in preaching the gospel to unbelievers and preaching the gospel to myself. I need to remember God's work first and foremost. It is because He first made me alive that I was able by faith, to trust in Him. To an unbeliever, I would stress the "Believe in the Lord Jesus Christ." To the believer, see who you were, what he has done, and out of a heart overflowing with gratitude for his grace - live the life to which you are called (vs. 10).