Practical Guide to Prayer – Check below to buy on Amazon
Praying in the Spirit with all types of prayer (Eph. 6. 18, 1 Tm. 2.1): petition, supplication, groaning or travail or intercessions (Rom. 8.26) and thanksgiving.
And He spoke a parable to them to this end, that men always ought to pray, and not faint. Luke 18:1.