From The Life and Times of Bruce Gerencser:
Evangelicals believe the words printed in red in the New Testament were uttered by Jesus himself. Thus, in John 14:13, Jesus says to his followers: whatsoever ye shall ask in my name, that will I do, that the Father may be glorified in the Son. Jesus’ unambiguous statement makes it clear that whatsoever Christians prayerfully ask in his name, he will do. Awesome, right? Mark 11:24 records Jesus saying: Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them. Jesus’ statement in Mark 11:24 is even more extreme. Whatsoever Christians desire and pray for, if they will really, really, really believe that God will give it to them, Jesus will affirmatively and fully answer their prayers. If only this were true, why I might become a Christian again.