He will not fail you, just as he did not fail Paul. God's help is not just barely enough, but in abundance. He is ever willing to place all the resources of the universe at our side to help us through our trouble. He does not say he will keep us from all trouble, but he is there to help us through it. Because our trust is in God, we will not fear no matter what disasters may occur around us.
Fear is our biggest enemy.
It is the opposite of faith. When we allow fear to grip our hearts, we find our faith slipping away. As long as we have faith that God is in control, no disaster can cause us to fear. The more we inspect the storms around us, the less we think of God's help, and soon we discover full-blown fear engulfing us. For the Lord shall be thy confidence, and shall keep thy foot from being taken.