Acts 8:24 Then Simon answered and said, “Pray to the Lord for me, that none of the things which you have spoken may come upon me.”
This Simon we are talking about here was a sorcerer who was very good at his job; he was able to do things which were not coming from God.
When he heard the Gospel, he too believed it… but his heart stopped him from receiving the Holy Spirit.
Too often we stick to things in our lives which prevent us from living fully with and for God. We hold on to earthly ways and prevent God from working as He should be able to.
Allow God full control and trust in Him totally!