Humility Through Calling.

The calling of God produces humility.

I Corinthians 1:25-31 (nasb)

Because the foolishness of God is wiser than men, and the weakness of God is stronger than men. For consider your calling, brethren, that there were not many wise according to the flesh, not many mighty, not many noble; but God has chosen the foolish things of the world to shame the wise, and God has chosen the weak things of the world to shame the things which are strong, and the base things of the world and the despised God has chosen, the things that are not, so that He may nullify the things that are, so that no man may boast before God. But by His doing you are in Christ Jesus, who became to us wisdom from God, and righteousness and sanctification, and redemption, so that, just as it is written, "LET HIM WHO BOASTS, BOAST IN THE LORD."

Those who are good looking or talented in the world's eyes are quickly elevated to positions of respect, admiration, and celebrity. The hard working mother or father would be thrust aside if Catherine Zeta-Jones or Dale Earnhardt walked into a room. Celebrities, athletes, and politicias pride themselves in what they have made of themselves.
God has a different way of raising people up. Rather than seeking out only the talented in the world's definition, He calls the lowly.

Listen, my beloved brethren: did not God choose the poor of this world to be rich in faith and heirs of the kingdom which He promised to those who love Him? - James 2:5

"He raises the poor from the dust,
He lifts the needy from the ash heap
To make them sit with nobles,
And inherit a seat of honor;
For the pillars of the earth are the LORD'S,
And He set the world on them. - I Samuel 2:8

While His desire is that everyone serve Him, it is when He raises up those that the world has thrown aside that He is truly glorified. When God blesses those not exalted by the world, they cannot boast in themselves, but in who they are in Christ. Hudson Taylor puts it this way:

"God uses men who are weak and feeble enough to lean on Him."

Maybe you cannot speak eloquently, perhaps you are shy, or maybe you have low self esteem. Find your identity in Christ and allow Him to bless you with His talents and giftings. As with Moses who had a speech impediment. God raised Him up as the leader of the people of Israel. When it was all said and done Moses could not point to himself as a great leader, he could only point to what God had done in his life.
Don't be discouraged because you do not think you have any talents. Make God your only desire and He will raise you up as His servant. Only then will you no longer be able to say "Look what I have done!" but rather you will say with confidence "Look what Christ has done in me!"
By taking ordinary people and making them worldchangers, Christ receives all the glory. What the world has cast aside God can raise up into something even greater.