Part of being a Christian means to participate in expanding the Kingdom of God. Every Christian is to work for this end according to the gifts given him or her by the Lord (Matt. 28:18-20; Rom. 12). Not all are pastors, or evangelists, or teachers (Rom. 12), but each Christian is expected to do his or her part to promote the gospel whether it be by prayer and/or tithing, and/or teaching, and/or bearing and training children, and/or evangelism, etc.