Spiritutal Gifts

hey yall..........so i have been meeting with my neighbors kids and they all are in high school and all three are boys and are very different, they want to know more about Christ and what he can do and who he is but the oldest asked me a question "How can i find my purpose of who i am suppose to be within Christ?" i was mind blown when a 17 year old asked me that. i all knew at the time that it is a process and that God can and will show you over time what your purpose is ... i told the young man that God created us in his image and that we all have a special gift given from God such as encouragement or speaking or listening or giving joy or hope to those who need it and he has asked me to help him find his spiritual gift from God but the thing is i don't know how ......i told him that God showed me when i was worshiping what i was suppose to do and what i was made to give to people but i dont know ant scripture to show him does anyone know of any good ones?