Many families in contemporary society feel that change in the moral and practical climate of the world justify the practice of birth control. For example, many claim that harsh economic conditions make them inadequate to care for larger families. This type of thinking is totally antithetical to Christian mores. In the Sermon on the Mount, Our Lord taught us not to serve the world but to set our hearts on the kingdom of God, and all our material needs would be satisfied. If God so feeds the birds who don’t toil or spin, how much more will He take care of those who are His sons and daughters. God knows that we need these things and He provides them to the whole world as He wills. There is no cause to inhibit the conception of a child based on fear of need, regardless of what the world deems as sufficient. The world believes that the family and children are a threat to society, as ironic as that may seem. Children supposedly require too much food, use too much energy, overpopulate the earth, deprive mommy and daddy of individual pursuits, etc. But these concepts come from nothing but the selfish heart of man. The world has no concept of the kingdom of God, and thus they cannot understand that we are producing citizens for that kingdom. All the world’s peoples are concerned only with this earth, because that is all they have. But the Christian should not be influenced by the world’s thinking. The Christian must seek first for the kingdom of God. One way he seeks for the kingdom is by bringing children into the world. If it takes more sacrifice, time, effort, love, money, etc, to bring children into the world, then the Christian should be willing to offer himself on the altar of service to God. He must not be conformed to the thinking of this world, but must be transformed by the renewing of his mind toward God (Romans 12:12).
I have little doubt that your theory of “God’s will works through contraception” is about as sane as someone declaring that “God’s will works through abortion” or “God’s will works through tobacco and methamphetamines” your theories are not what - as I understand - God has had planned for us.
Sustain: To supply with necessities or nourishment; provide for