The Work of God Is to Believe
Jesus answered them, “This is the work of God, that you believe in him whom he has sent.
God never calls us to be adequate, but he always calls us to be available. We can be available to his Holy Spirit by trusting his promises through believing his Word. As we trust him, his Holy Spirit works in and through us touching lives, encouraging faith, and expressing God’s love. This is the work of God: trust the Christ that lives in you to minister the life of God to the people of God for the glory of God. The overflow of Christ in you is good works and that is New Testament ministry.
That is the work of God. It is your living faith in the adequacy of the One who is in you, which releases His divine action through you. It is the kind of activity that the Bible calls “good works,” as opposed to “dead works.”
“Good works” are those that have their origin in Jesus Christ– whose activity is released through your body, presented to Him as a living sacrifice by a faith that expresses total dependence, as opposed to the Adamic independence (Rom. 12:1-2).
Major Ian Thomas, The Saving Life of Christ/The Mystery of Godliness (Grand Rapids, MI: Zondervan, 1988), 26.