Passion and persistence in prayer matter. Prayer is not supposed to be completely stoic. There is reason to think God is more likely respond to prayers offered in urgency, sincerity, and earnestness. John Frame explains why our emotional frame in prayer matters:
“Earnestness is a quality we see in the prayers of many of God’s people in Scripture. See how passionate they are in prayer, how urgent: Daniel 9:19 reads, “O Lord, hear; O Lord, forgive. O Lord, pay attention and act. Delay not, for your own sake, O my God, because your city and your people are called by your name” (cf. Heb. 5:7).
People sometimes ask, why do we need to be passionate in prayer? Does God need to be urged? Does God respond more to emotional appeals than nonemotional ones? Well, think what you will, but remember that our relation to God is personal. He is our Father, not a favor-dispensing machine. Our emotions, our repetitions show our persistence; they show that our hope is only in God. And sometimes the nature of our requests is such that they are falsified by an unemotional approach to God.”
TPC Pastor's Page 