God demands humility if He is going to show you your calling in His kingdom. As long as you can do it all by yourself, you don’t need God. And if you don’t need God then it can’t be His calling because God’s calling on your life will always be greater than anything you could ever accomplish on your own.
Why does God want the totality of your life before He shows you your calling? The answer to that question is found in John 7:16–17, where Jesus said, “My teaching is not Mine, but His who sent Me. If any man is willing to do His will, he shall know of the teaching, whether it is of God, or whether I speak from Myself.”
If you want to know your calling, don’t go “calling-looking.” Go God-looking. God knows where He wants you, what He is calling you to do, when He wants you to do it, and how He wants it done. Therefore, if you want to find your calling, look for God. When you find God, His calling will find you.