Satan cannot deny but that great wonders have been wrought by prayer. As the spirit of prayer goes up, so his kingdom goes down. Satan's strategems against prayer are three. First, if he can, he will keep thee from prayer. If that be not feasible, secondly, he will strive to interrupt thee in prayer. And, thirdly, if that plot takes not, he will labour to hinder the success of thy prayer.
William GurnallSometimes, perhaps, thou hearest another pray with much freedom and fluency, whilst thou canst hardly get out a few broken words. Hence thou art ready to accuse thyself and admire him, as if the gilding of the key made it open the door the better.
William Gurnall