In the story of Genesis 22, we see that the provision for worship was already provided. God had arranged for what is known in eternity to break into earth's time-line.
Abraham packed up his provisions for worship. He packed the donkey and gathered and split the wood. He then set out towards a predetermined mountain set up by the Lord. God already had in mind what he was about to do. Issac asks, “We have the wood and the fire, but where is the sacrifice?”
Abraham prophetically declares, “God will provide a lamb for Himself.”
If you are wise, provision is something you have in your possession on the outset of the journey, not something you come into along the way. With every turn in the journey you acquire provisions for the days ahead. That is why the word means foresight. You look ahead and see what is going to be needed and you pack it and take it with you.
When I used to fight forest fires, we would take our provisions with us when we were flown into a fire. Those provisions enabled us to work for a set period of time. On one occasion the job was longer than what we had provisions for, so we had provisions flown into us via helicopter.
I see that God sent Abraham on a journey of worship in which heaven already possessed the provision. The Lamb that was slain. Abraham was about to unlock and come into the knowledge of that provision.
Through Abraham's obedience heaven's provision was released. The provision for the journey is given to you before the journey begins. God saw fit to look ahead and in grace satisfy our needs with well thought out provisions, which He hid in Christ. We now have Christ, which means we are not coming into provisions with don't yet have, but that we are on a journey to discover the provisions we now possess.