Prayer is the lisping of the believing infant, the shout of the fighting believer, the requiem of the dying saint falling asleep in Jesus. It is the breath, the watchword, the comfort, the strength and honor of a Christian.
Spiritual mercies are good things, and not only good things, but the best things, so that you may well ask for them; for if no good things will be withholden, much more will none of the best things.
If you want power in prayer you must have purity in life.
If our faith is to grow exceedingly we must maintain constant intercourse with God.