To accredit certain persons as messengers of God. The miracle authenticates the message and the messenger. To meet human need. Feeding the 5000. As evidence for the deity of Christ.
Miracles get our attention.
They instruct us. They are moral, and they have a distinct purpose. V. Miracles and the Providence of God. The Biblical doctrine of Providence teaches that the Creator is working our His plan through His created works. With regard to miracles it is essential to understand that God is working in the natural flow of events as much as He is when He performs a miracle.