This episode is the second time in Acts when the Lord makes a point of introducing two people to one another by supernatural means. The first time was in the previous chapter when He appeared to Saul and said that Ananias was coming, and then appeared to Ananias and told him to go minister to Saul (Acts 9:11-12). Then an angel of the Lord arranged for Philip to meet the Ethiopian eunuch (Acts 8: 26-27). And in this passage, Cornelius is told to send for a man named Simon Peter (v. 5), and is given the address (v. 6). The next day Simon Peter is told that the men sent by Cornelius are in fact from Him (v. 20). And this is not the last time it will happen in Acts either (Acts 16:9-10).

Remember our Table of Contents from chapter one (Acts 1:8), and realize that the Spirit is actively involved in introducing wildly disparate people to one another. It is as though the Spirit is working the room, making all kinds of introductions. This is how the kingdom works.