This is the confidence we have in approaching God: that if we ask anything according to His will, He hears us. And if we know that He hears us – whatever we ask – we know that we have what we asked of Him. 1 Jn 5:14-15
Knowing God’s will is an important aspect of prayer. It is essential for faith.
How can we truly believe and stand firm in unwavering faith if we aren’t certain that God wants us to have what we are asking for. Without that certainty, any expectation of success is presumptuous and not an act of faith.
Many things we seek are promised by God if certain conditions are met. Therefore, if we know something is promised and we know we have met the conditions, we can have the confidence referred to above.