Genesis 45:21

Joseph not only desires his brothers to be near to him, but he provides the means to bring them to himself. No exhausting march lay before Jacob in his weakness and old age, no long, wearying journey for the little ones and their mothers. No — they were carried every step of the journey in the wagons. In other words, the power that carried them to Joseph came from Joseph.

The message is full and clear, but it is not enough to be entrusted with a message; the messenger must be fully equipped to deliver the message. The disciples whom the Lord commissioned to preach had to wait until they were clothed with power from on high… Their power to serve comes from the Person who gives them their commission. It comes from the place of exaltation where that Person now is. Is this not foreshadowed in the story of Joseph?… They were provided with a new power to journey on their way. And the power that took them back to Canaan was the power in which they were to bring their father to Joseph.

Moreover, had the brothers fallen back on their own "stuff" to support them in their service, they would have slighted the provision of Joseph. Their action would have said, "Joseph's provision is not enough for Joseph's commission."… As they carried out their service for Joseph, the good of the land they came from sustained them. They received it from the hand of the one who sent them. It is no different in the service of the Lord in this day of His grace. He has given us full provision to carry out His service. So bringing human methods into this service insults His provision.

Pharaoh gave these travellers "provision for the way," we read. And what provision has been made for us! "All things" are ours. The hairs of our head are all numbered. We have an Advocate with the Father should we sin. We have a great High Priest to sympathise with us in our sorrows. The Comforter sustains us. We have everything we need, in fact, along our pilgrim way and for our service to the Lord.

The king suggested the wagons and left Joseph to supply them. Those very wagons helped to assure the father that he could believe the story that made his heart fail at first — that Joseph was still alive… The proof was there in the means of going down into Egypt, which his sons could not have provided.

But there were the wagons sent from Joseph with their full supplies. To him they were a foretaste and pledge of the good things waiting in Joseph's presence. That produced conviction and revived Jacob's heart. His nerve returned and he was ready for the journey.

Transportation is provided too. "Wagons" were sent to carry the weak and helpless. And what answers to the wagons in this picture is the Holy Spirit sent by the Father to bring helpless sinners to Christ.