If you were asked what the chiefest endeavor of the Christian life is – how may you answer? It is a strange phrase to begin with. Chiefest Endeavor, what does that entail? It simply means, the foremost goal we desire to achieve in the Christian life. And what is this foremost desire of our hearts? It is to meditate upon the life of Jesus Christ. It is the pinnacle truth of the Christian message: He that followeth me, walketh not in darkness (see John 8:12)
It is not merely believing in Christ, Jesus for our salvation. It is not even confessing Him as our Lord and Savior (Yes! These are essential and important truths of the Gospel Message). What distinguishes Christians is the very act of imitating His life and manners as a result of believing in Christ and confessing Him as our Lord and Savior.
Through the power of the Holy Spirit, we become enlightened to this simple and yet wonderful truth. It is where we receive sustenance from the Lord. This is because, through the Spirit of Christ, we are affected in a manner in which our lives are completely transformed. As we come to understand the words of Christ, we desire to conform our lives to mirror his life wholly and completely.
All other things become vain. King Solomon remarked, through his own personal experience, that all one endeavors to accomplish in life is nothing but vanity. The only truth, and a very profound and simple truth at that, is two things: Fearing God and Obedience to the commandments of God.
We are either driven to achieve the honors, wealth, and satisfy the desires of our present human existence; or, we are driven to walk faithfully with our heart set on the Kingdom of God. Either we lose the favor of the Lord over our lives, or we gain his favor through grace by obedience and walking in humility after the manner in which Christ lived out his life.