It is a contradiction but, with God in the picture even a contradiction works. How do I know? Read the story of Jesus feeding so many with so little, like the five loaves and two fish to feed five thousand men. Some say that there were likely fifteen thousand souls there at least and yet there were twelve baskets left over from a lunch meant for one child.
God can use even a little talent in a big way, no matter how you see yourself or where you may be in the world. But, you have to give Him control of your talent and yourself before He can use it to bless others. Just as when a farmer plants a seed or a plant in the ground, it is only one at the time. But with water, air and sunlight it can become much more than one seed or one plant.
We, as Christians, are like that as well. God places His Spirit in us when we are saved and we are supposed to nurture it with care and feed it by prayer and the Word of God. By studying God’s Word, we feed the Spirit and like Jesus said “it will overflow as a river of living water” to all who are exposed to it. True, it may not be His exact words but that is what we are supposed to be, springs of living water to draw the world to Him by what they see or hear in us.
God can use each of us in ways that we can’t imagine or even believe that we could do. But, with His Spirit guiding us we can do so much more than just be ourselves. We can be His ambassadors and representatives to anyone who is searching for the Truth. It doesn’t take much. A prayer here or helping someone with their load in some way. Opening the door for someone, praying for someone who you don’t know.
These things are “works” true enough, and they don’t get you a spot inside the gates of Heaven. Giving your life and your heart to Jesus gets you into Heaven, the “works” are part of the life that you live after you accept Him. These are the results of your salvation, the fruits of your life in Christ that never would’ve grown out of your life if you had not given your heart to Jesus.
Just as James wrote in his epistle, “Yea, a man may say, Thou hast faith, and I have works: shew me thy faith without thy works, and I will shew thee my faith by my works.” James 2:18, he wasn’t speaking of works being required by your faith but as a result of your salvation. The works that you do will prove your faith and your salvation! God loves each of us so deeply that we won’t understand it until we are in His presence, but He hates the sins that we have lived with in our life. Repent and turn to Him, give your heart and your life to Him so that you will be saved.