In breezing through the newspaper, I noticed the classified section. Just for kicks, I read over a few job listings. Most of the available jobs had qualifications you could read to determine if you were qualified to apply for an open position.
In Matthew 16, Jesus predicted his death to his disciples and told them all of the sufferings he would have to endure. Jesus knew what God was calling him to do and he knew where God was leading him. But Peter became angry when he heard Jesus talking about his death. Matthew 16:22 says, "Peter took Jesus aside and began to rebuke him. 'Never, Lord!' he said. 'This shall not happen to you!' Jesus turned and said to Peter, 'Get behind me, Satan! You are a stumbling block to me; you do not have in mind the things of God, but the things of men.'" Jesus told Peter he would not be deflected in what he needed to do.
Do you see how the devil will use people to get you from your post of duty? Just like a snake shedding its old skin, we need to shed anything and anyone who tries to prohibit us from doing what God is telling us to do.
Unlike the job listings in the newspaper, God does not always call the qualified, but He does qualify the called. And when God calls you to do something specific, it is imperative that you not lose your focus on what God has set before you. The devil dreads the day when you begin to see yourself becoming qualified to do what God is qualifying you to do!