Christians can do anything Jesus calls and strengthens us to do. Equally important is the knowledge that if we do things in our own strength or personal motives, Jesus is not at work; we are. The key to living with the strength and purpose of Christ is understanding it's much different than our own. 

Spiritual things happen through the Spirit of Christ. Remember, Jesus said, “I can do nothing on my own. As I hear, I judge, and my judgment is just, because I seek not my own will but the will of him who sent me” (John 5:30). Jesus, when he submitted himself to a human body, walked and ministered according to the strength and judgment of God. Jesus’ earthly ministry is the perfect example for ours. We cannot accomplish the work of God. We can be available to God so that he can work through us. 

We are called to be disciples, students of Jesus Christ. We need to study his words and his earthly ministry in order to know how to have a ministry ourselves. Jesus taught us to allow God’s voice to call us to his purpose. Jesus taught us to pray for his “kingdom to come, on earth as it is in heaven.” Jesus taught us to allow God to reign in our lives. 

Now Jesus is seated at the right hand of God, no longer bound by a human body. His Holy Spirit is our strength. The Holy Spirit is the Spirit of Christ, and when we are led by his Spirit we continue the earthly ministry of Jesus in the world. That is why Paul could say, “I can do all things through Christ who strengthens me.”  

That is why we allow the word of Christ to dwell in us richly. It's the word of Christ the Spirit, who will speak to us so that we will function in the power of Christ to fulfill our calling. Apart from him, we can do nothing. With him, we can do all things.