I Thank God for the Church
When a child is born, it is at once endowed with all the faculties of humanity. If those powers are lacking at first, they will not come afterward. It has eyes, it has hands, it has feet, and all its physical organs. These of course are, as it were, in embryo. The senses, though perfect at first, must be gradually developed, and the understanding gradually matured. It can see only a little; it cannot discern distances. It can hear, but it cannot hear distinctly enough at first to know from what direction the sound comes. But you never find a new leg, a new arm, a new eye, or a new ear growing on that child. Each of these powers will expand and enlarge, but still there is the whole man there at first, and the child is sufficient for a man. If only God in his infinite providence causes it to feed, and gives it strength and increase, it has enough for manhood. It does not need either arm or leg, nose or ear. You cannot make it grow a new limb; nor does it require a new limb either. All are there.
In like manner, the moment a man is regenerated, there is every faculty in his new creation that there shall be, even when he gets to heaven. It only needs to be developed and brought out. He will not have a new power; he will not have a new grace. He will have those that he had before, developed and brought out.
Just as we are told by the careful observer that in the acorn there is in embryo every root and every bough and every leaf of the future tree, which only requires to be developed and brought out in their fullness, so, in the true believer, there is a sufficiency or adequacy for the inheritance of the saints in light. All that he requires is not that a new thing should be implanted, but that that which God has put there in the moment of regeneration shall be cherished and nurtured, and made to grow and increase, until it comes unto perfection and he enters into “the inheritance of the saints in light” (Col 1:12).