Jesus shows us that God is pleased to use human instruments in performing the wonders of His grace. He did nothing in changing water to wine that was unnecessary for Him to do. The servants filled the vessels and took the wine to the master of the marriage feast. There was no reason for Christ to do this kind of work for them. Instead, He did what no one else could do. This principle applies to His work in us: He does not do things for us that we can do ourselves. Further, He will not perform miracles if they would destroy industriousness or encourage laziness and irresponsibility. Miracles do not excuse us from carrying out our responsibilities.
Likewise, faith without works is dead (James 2:14-19). It is an honor to work with God in faith to accomplish His will, and if done with the right attitude, no one ever regrets his involvement in that service. God's commands are usually not easy to do, but they are possible—and necessary to do—if we want His blessing. In light of this principle, Paul states, "If anyone will not work, neither shall he eat" (II Thessalonians 3:10). This miracle prods all who follow Christ to grow in faith.
— Martin G. Collins