Two words summarize the practicality of the Christian life;

. . . walk and work. The sequence is important: first, wisdom; then walk; then work. I can't work for God unless I am walking with Him, but I can't walk with Him if I am ignorant of His will.

The believer who spends time daily in the Word and in prayer will know God's will and be able to walk with Him and work for Him. But its not we who work for God, its God who works in us and through us to produce the fruit of His grace.

Philippians 2:12,13 Wherefore, my beloved, as ye have always obeyed, not as in my presence only, but now much more in my absence; work out your own salvation with fear and trembling. For it is God which worketh in you both to will and to do of his good pleasure. 

Christian service is the result of Christian devotion. The work that we do is the outflow of the life that we live. It is by abiding in Christ that we can produce fruit.