What does the Bible say about faith and belief in God?

The Bible emphasizes that faith comes by hearing the Word of God (Romans 10:17) and that it is a divine gift, as the natural man cannot come to faith on his own due to his spiritual deadness (Ephesians 2:1). In John 3:27, it affirms, 'A man can receive nothing, except it be given him from heaven.' Therefore, belief in God and His power is foundational to the Christian life, as seen in Mark 5:36 when Jesus says to Jairus, 'Be not afraid, only believe.' This underscores the importance of trusting in God's authority over all circumstances, including life and death.