“Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone” (Colossians 4:6). In this verse the word translated “conversation” is the common Greek word logos, usually translated “word” in other passages. So the verse is talking about the importance of our words or speech, and it is telling us that our speech should be gracious and not insipid to the taste. It should be well-seasoned.
Gracious speech flows from a heart that has been established in the grace of God.

I say as we end this week of Easter readings that I do not know how much of what I have presented this week is what the Lord preached that day on his walk from Jerusalem to Emmaus. But it was a long trip. It would have taken several hours. And I suppose, therefore, that Jesus preached not only what I have tried to explain here, but also a great deal more besides. What I am certain of is this: The Lord preached the gospel from the Old Testament.

In the eighth chapter of Acts, we have another suggestive text. Here Philip has been sent to the Ethiopian eunuch. When Philip finds him, he is reading from a manuscript he acquired in Jerusalem. It turns out that it is Isaiah, and the portion from which he is reading is Isaiah 53: “He was led like a sheep to the slaughter, and as a lamb before the shearer is silent, so he did not open his mouth. In his humiliation he was deprived of justice. Who can speak of his descendants? For his life was taken from the earth” (Acts 8:32, 33).

 
In the fourth chapter of Acts we have another of Peter’s sermons. Here he has been called before the Sanhedrin (the highest council of the ancient Jews), and he is defending himself and his teaching. We have a relatively short record of this sermon in verses 8-12, but in the midst of it we have another important Old Testament text applied to Jesus. It is Psalm 118:22, which Peter cites, saying, “The stone you builders rejected ...has become the capstone” (Acts 4:11).

Today we look at some of the texts Jesus must have used in his sermon, which we discussed yesterday. An obvious place to begin is with Peter's speech at Pentecost found in Acts 2. Peter used three texts in that message. The first was about Pentecost itself. It was from Joel—the prophecy that in the last days, God was going to pour out his Spirit upon all flesh (Joel 2:28-32; see Acts 2:17-21). Peter explained that Joel's words were being fulfilled right then in the sight and hearing of the people. Then he went on to preach about Jesus.