Romans 6:23 and John 3:16 provide an outline for a gospel discussion. This approach can take as little as five minutes, or it can be expanded as time and the interest of a listener allow.
Using Romans 6:23 as an example, we circle the word in the text that we want to explain, add it to our diagram, and explain how it relates to a particular aspect of the gospel message. For example, when we circle the word death, we explain that the verse is talking about more that physical death. It is also about spiritual death, separation from God, and all that this entails. Then we move on the next word, and the next, making our way through the entire verse, discussing key points along the way.
Sin and Its Consequences
► We all, like sheep, have gone astray, each of us has turned to his own way; and the LORD has laid on him the iniquity of us all. (Isa. 53:6)
► For all have sinned and fall short of the glory of God. (Rom. 6:23)
► But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. (Rom. 5:8)
► For Christ died for sins once for all, the righteous for the unrighteous, to bring you to God. (1 Pet. 3:18)
► As far as the east is from the west, so far has [the LORD] removed our transgressions from us.” (Psalm 103:12)
► Now this is eternal life: that they know you, the only true God, and Jesus Christ, whom you have sent. (John 17:4)
► And this is the testimony: God has given us eternal life, and this life is in his Son. He who has the Son has life; he who does not have the Son of God does not have life. I write these things to you who believe in the name of the Son of God so that you may know that you have eternal life.” (1 John 5:11–13)
► For I am convinced that neither death nor life, neither angels nor demons, neither the present nor the future, nor any powers neither height nor depth, nor anything else in all creation, will be able to separate us from the love of God that is in Christ Jesus our Lord.” (Rom. 8:38–39)
Excerpt from "Workplace Grace: Becoming a Spiritual Influence at Work" by: Bill Peel and Walt Larimore