Our mission as Christians is to share the gospel with the entire world. Jesus told Peter in Matthew 16 the keys of the kingdom would be given to the church. We make up God’s kingdom on earth, and we have been given the mission to enlarge the borders by bringing others to a saving knowledge of Him. Prayer is our weapon against Satan. Through prayer, we can undo Satan’s work in the lives of believers. Prayer will help us to know where God is working, and
we can join Him there in kingdom work.

In order for God’s kingdom to continue to grow, we need to be in a state of constant prayer. I believe this is the greatest of the keys the church was given. Our prayers need to be specific and strategic communication with God. Prayer allows us to be in tune with His kingdom purpose and become equipped for every good work.

The establishment of God’s kingdom requires us to go to battle. We do not battle against flesh and blood, but against the evil forces of this world. Satan tries to prevent us from sharing the gospel. We must put on the full armor of God, and stand strong because the King of kings and Lord of lords goes before us in this spiritual battle.

In John 20:22, we see the resurrected Jesus talking with His disciples and giving them a blessed gift. He breathes on them and says, “Receive the Holy Spirit.” This was a down payment of what was going to happen at Pentecost. They were sealed and filled with the Holy Spirit at that moment, just as we are the moment we commit our lives to Christ. When the Holy Spirit was given to them, it was an invasion of the soul. It invaded the very core of their being. An invasion is a military offensive consisting of all or large parts of the armed forces of one geopolitical entity aggressively entering territory controlled by another such entity, generally with the objective of either conquering, liberating or reestablishing control or authority over a territory, forcing the partition of a country, altering the established government or gaining concessions from said government or a combination thereof. An invasion can be the cause of a war, be used as a part of a larger strategy to end a war, or it can constitute an entire war in itself. Due to the large scale of the operations associated with invasions, they are usually strategic in planning and execution. This invasion ended the war between God and man. God strategically planned this invasion before the foundations of the world were created. We have been liberated from the power and bondage of sin. Our relationship has been restored.

Jesus also wants His disciples to reproduce the structure He has established. Through the disciples, the church was formed. The church was to be structured so believers would be filled with the character of Christ.

Jesus commands us to teach the truth about Him and His kingdom. I believe this is the key that is the most important one to be used to advance the kingdom of Christ on Earth. He wants us to teach others to observe His commands and trust and obey Him in every situation. If you think about it, the root word for discipline is disciple. If we take the key of discipleship seriously, we will be instilling discipline in each believer, and we may never have to follow the guidelines on Matthew 18.

The central message or key that we need to share with all nations is that Jesus is the way, the truth and the life. He is God’s one and only Son. In order for the uniqueness of Christ to be fully displayed, we must live a life that points others to Him. The gospel message is a global message. People matter to God. We need to see them through the eyes of Christ. When we truly see people’s need for the life-changing power of Christ, then and only then will we share the way He desires.