age anger anxiety anxious appeal armor assurance atheism backsliding blessing boredom burden calamity character cheerfulness christ church comfort commit concern creator dependance dependence desire devoted discipline distractions dust duty earth enemy eschatology eternity faith fasting father friends friendship glory god god's faithfulness gospel grace great growth heart heaven holiness holy spirit hope human idolatry intercession internet jesus justice kingdom leadership life love marriage meditation mercy ministry miracles pain pastors people petitions power praise pray prayer prayerlessness prayers praying preaching pride promises reflection relationship relationships repentance rest saints satan scripture self dependence service silence sin skepticism slander souls sovereignty strongest suffering supplication tears temptation thanksgiving time trials trinity trust unbelief vain valley war weakness willing wisdom words work world worry youth