Ecclesiastes 11:5
As thou knowest not what is the way of the spirit, nor how the bones do grow in the womb of her that is with child: even so thou knowest not the works of God who maketh all. As thou knowest not what is the way of the spirit, nor how the bones do grow in the womb of her that is with child: even so thou knowest not the works of God who maketh all.
As with the movement of the wind or spirit and the hidden forming of bones inside a pregnant woman, human beings do not grasp how life develops and do not comprehend the workings of the One who makes everything. The comparison exposes the boundary of human knowledge beside divine action, for people cannot trace or explain those concealed processes of growth and likewise cannot fully know the works of God. That limit points to dependence on God, who alone understands all things and brings them to pass, and it belongs to a practical summons to missionary labor.
Applied to sowing and to every effort done for God, the lesson is that no one knows by what hidden operation God will give growth or what outcome personal exertion will have. Seed is put into the ground without insight into how increase comes, so the work is to be performed in faith while trusting God to make it effective and to prosper it beyond human sight. He is able to render such labor fruitful in ways concealed from understanding and to direct events toward good even when the result cannot be foreseen.
In missionary work therefore the effect of scattering the message lies beyond human reckoning, and no worker should hold back until assured which effort will succeed. The call is to keep sharing continually, in morning and evening diligence, leaving the increase with God rather than waiting for certainty about what will prosper.