And without faith it is impossible to please God, because anyone who comes to him must believe that he exists and that he rewards those who earnestly seek him.
Faith is the foundation of any Child of God spiritually walk. Without that foundation your spiritually house will dismantle as soon as it encounter its first storm. I remember vividly when I was first called to be a messenger for the lord, one of the first fruits of wisdom he gave to me was "Trust and Believe". Not understanding the severity of those precious words then, but now I fully understand that they are the cornerstone of my "Walk In Christ." Faith pushes us into an intimate relationship with our Father, transforming the way you see him as God into a compassionate way you love him as a Father. Not seeking him for blessings and rewards, but rather his presence and his heart.
Take King David for example and how he was not only revered as a great warrior but was the epitome of a man after God's own heart.(Act 13:22) In Psalm 63 King David illustrated the intimate connection he had with Yahweh by expressing his love for God saying "My soul thirst for you, my flesh yearns for you, in dry and weary land where there is no water. Seldomly, we depict Yahweh as a God of Wrath and not a God Of Love. Not comprehending the full essence of his nature for he is the source of love (God Is Love 1 John 4:8)