(58) Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, knowing that your labor is not in vain in the Lord.
New King James Version Change your email Bible version
This verse states the central issue for a Christian to keep in mind. Work is part of Paul's conclusion to truths about the first resurrection; doing the work of the Lord is clearly related to our participation in it. The phrase "work of the Lord" is the key to what is important to God and therefore must be important to us if we are going to glorify Him.
There is no doubt that Solomon was an imaginative and diligent worker. He was even directly involved in a major work of God during the early portion of his reign, yet his first conclusion regarding the work's value is negative: “Then I looked on all the works that my hands had done and on the labor in which I had toiled; and indeed all was vanity and grasping for the wind. There was no profit under the sun” (Ecclesiastes 2:11). What went wrong? He probably did not really involve God in the project to the degree and in the attitude that he should have.
Ecclesiastes 2:18 expands on this: “Then I hated all my labor in which I had toiled under the sun, because I must leave it to the man who will come after me.” This confirms that he was doing the work in an “under the sun” manner. His perspective seems quite carnal, thus the blessing from God that would have come from an appreciative, cooperative, and sharing attitude did not flow to him. He enjoyed the work, but he received no spiritual blessing.
On the basic and necessary level of works are Bible study and prayer, which everyone can participate in and do well in, according to their gifts. Then come more active works like serving, being kind and encouraging, being helpful, and being a good example to all. These basic elements are the works that most shape us into the image of God. As Jesus taught, we are to work in order to profit from that labor and carry it through the resurrection and into the Kingdom of God. These labors are the most critical to whether we will glorify God. They are the ones that our reward is based on. They are services to God and His Family.
I Corinthians 15:58 is a reminder, an exhortation, and a promise to the church through Paul, that if we want to be in the first resurrection and experience its glory, we had better pay attention to this above all things in life. We must discipline our knowledge and energies into work because this is what life is all about.
— John W. Ritenbaugh