Statements like "we need to pray really hard about this" and "call everyone you know and get them praying!" etc. are interesting. The clear implication is that the more prayer, in quantity (both in time spent, and in the number of people praying) and intensity (pray harder!), the more likely God will answer. (And I mean answer in the obviously hoped for way - a healing or whatever. When God answers "no", well that's another topic!)
But is this really true? I guess we'd need a scientific study to answer definitively, with a control group and so on. But, in your experience: is it true? Does God come through for you more often when you spend more time in intense prayer, and/or get the prayer chain going?
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Hebrews 13:23 Know ye that our brother Timothy is set at liberty