1 John 5:14
This is the (remarkable degree of) confidence which we (as believers are entitled to) have before Him: that if we ask anything according to His will, (that is consistent with His plan and purpose) He hears us.
Prayer is our connection to God, and God wants us to pray. When we pray, we need to know that what we ask for lines up with the word. Our prayers are not seeking selfish things according to the flesh—however, prayers for healing, wisdom, direction, and financial increase, all according to the word.