I need some bible verses.?

I have felt the call to be a youth pastor for almost a year now. I have been a 'christian' for a long time, but i haven't had a relationship with God until the last 5 months. I read a book called Radical and it changed my life. You should read it. Anyways, I went to camp with my church this week and I finally surrendered to the call of being a youth pastor/pastor. I really feel like God wants me to be a youth pastor or a pastor, however, I am struggling very much. I know I made the right decision, but Satan is pulling at me so much. I am just asking for some encouraging verses in the Bible. It helps alot. Thanks