Living in faith is not denying the reality. Living in faith is being aware and living in a different reality. In 2 King 6, when Elijah and the young man were under attack, Elijah did not deny the power of the enemy and their numbers; he was aware of another reality and the presence of an army that was not visible to the rest of the world 2 King 6:17.
Jesus did nothing unless He saw the Father act or heard the Father speak. If Jesus made a deliberate choice to live out of the spiritual reality, then so do we.