People use the word "fall" in many ways. But the way I'm thinking of is actually falling physically--and finding the divine help we need to overcome bodily injury.
A passage from "Science and Health with Key to the Scriptures" by Mary Baker Eddy has helped many students of Christian Science over the years. "When an accident happens, you think or exclaim, "I am hurt!" Your thought is more powerful than our words, more powerful than the accident itself to make the injury real." In the next paragraph she continues, "Now reverse the process. Declare that you are not hurt and understand the reason why, and you will find the ensuring good effects to be in exact proportion to your disbelief in physics, and your fidelity to divine metaphysics, confidence in God as All, which the Scriptures declare Him to be."
Because of the Bible's assurances that God, divine Love, is an ever-present, unfailing help in trouble, we can turn in complete confidence to Him. No matter what situation we may find ourselves in, God's help is always at hand, even--more accurately, especially --when the need is urgent.
Christ Jesus taught us the inseparability of man from God. We're able to see the effects of this truth as we live in harmony with the divine will. As Jesus said, "He that sent me is with me: the Father hath not left me alone; for I do always those things that please him."
Knowing that man is God's child, wholly spiritual and safe in the care of his creator, regardless of appearances, the Master was able to heal. And Jesus' works bring to light the fact that man can't fall from his original spiritual state of perfection and freedom as the offspring of God. Through understanding that our real being is spiritual, and making a sincere effort to be obedient to God in our lives, each one of us can know the comforting assurance of divine Love's care, whatever the challenge may be.
Man's true selfhood, as the outcome of Spirit, God, is spiritual, not material. Thus that man--our real identity--is not at the mercy of accident, injury, or disease. The divine fact is that you and I are God's child, and we can never, for an instant, be deprived of our Father-Mother God's loving care. We're never really out of our God-provided place of spiritual security. We can't be apart from our divine source, God. As God's man, we are and always have been preserved by His unerring laws of order, safety, and exemption from harm. Such divine facts give us the authority and confidence we need to heal injury and pain.
We have Christ Jesus to thank for revealing and proving fully the Father's constant love for His children. And when we're empowered with the spiritual truths Jesus knew about God and man, we can prove for ourselves, in healing, that there can be no fall from God's omnipotent care.