A Christian believes that Jesus is the Son of God. In addition, he or she should desire to be like Christ. To be united with Christ means to be one with Jesus, and is a statement of a Christian's partnership with Jesus in communicating to other in our walk and our talk, what he is like. The hearts and action of Christians are to be the same as that of Jesus Christ. Our lives should characterize the tenderness, compassion, unity and love of Jesus and we should have a desire to serve others. What should be absent are selfish ambitions and vain conceit. God understands that doing these things will not be easy. But neither was Jesus' journey to the cross. Jesus was "obedient unto death" knowing that his sacrifice would ultimately result in restoring man's broken relationship with God. God wants Christians to be obedient to the same degree, knowing that this will fulfill His purpose for our lives and work out or finish what was started when we first put our faith in Jesus.
Being one with Christ should result in a desire to be like Christ. This in turn should lead to a commitment to be obedient. The net result should be a life that reflects Christ character, one where our attitude and actions are a good reflection on God. Like Noah's ark, there is only one door into salvation, and that door is Jesus, and only those inside Christ spiritual body, His Church, will be saved when the flood of judgment comes. The Fathers will is that none will be lost, let us live a life that leads all men to the salvation of the Lord.