The only power that God yields to is that of prayer.
Nobody else can give you a clean heart but God.
Surely revival delays because prayer decays.
If we had more hell fire preaching in the pulpit then we would have less hell bound people in the pew.
If a Christian is not having tribulation in the world, there's something wrong!
A man may study because his brain is hungry for knowledge, even Bible knowledge. But he prays because his soul is hungry for God.