Remember those days when you were first learning to swim, perhaps with your father or mother standing beside the swimming pool, encouraging you to jump in and they would catch you? Perhaps it was learning to ride a two-wheeled bike for the first time and your parent (or maybe a trusted older sibling) was keeping you up, saying “trust me, I’ve got you.” Perhaps the thing to which you can relate is stepping out in a business venture and your partner or backers saying, “trust me, you got this!”
We rely a great deal on trust…and to some extent, if you don’t place your trust in others you end up becoming a curmudgeon and a cynic and you isolate yourselves from relationships. But even though trust is a part of most of our relationships, often we do not spend much time thinking about what trust happens to be.
The dictionary defines trust in terms of your “belief in the reliability” of another — in other words, it points to someone or something that is outside of you upon which you rely. In many ways, the word is almost synonymous with the word, “faith.” Trust is that recognition that if you rely upon another person, they will not let you down.
And so, when the Catechism, in Question 21, asks about true faith, it speaks of having a sincere trust that the Holy Spirit works in me through the Gospel. What is this all about? The Spirit has many roles in the life of the believer — he is counselor (John 16:7), teacher (John 14:26; 1 John 2:27), and giver of gifts (1 Corinthians 12:4-11) amongst other things. But most basically, His role is to conform the life of the believer into the image of the Son.
How does the Spirit do this? The most basic way he does this task is through the Gospel — through the word studied and preached and applied to the life of the Christian. We might even more simply speak of this in the context of the “ordinary means of grace” or in the context of the “keys of the kingdom,” both of which we will talk about more later in this catechism.
And so, an aspect of True faith, or saving faith as some would put it, is the trust that the Spirit is at work in me, conforming me into the image of God’s Son (Romans 8:29) — in other words, that tomorrow I might look more like Jesus than I did today. Trusting also implies that we act upon that trust — striving as empowered by the Holy Spirit toward this goal of honoring Christ, whether through applying the Ten Commandments to my life as a way to grow in my sanctification or in seeking to be obedient to the many other commands we would see Jesus, our Lord, set before us. In other words, genuine trust requires an action on my part — a response to that trust — jumping in the pool, riding the bike, entering that business venture. We act in faith in the confidence that the Spirit is acting in us through the Gospel.
And note one more thing…it is the trust that the Spirit is acting in us through the Gospel — this does not require (or even speak of!) supernatural works (this I would argue, ended at the close of the first century with the close of the Canon). It is through the Gospel — the written revelation of God contained in the Bible. A humble and faithful life, rooted in the Word of God, is a far greater testimony than all the “miracles” that man might like to think he can produce.