Sinclair Ferguson considers faith and repentance.
Because they can be experienced differently and distinctly we might think they are separate.
But that is unhelpful.
In grammatical terms, then, the words repent and believe both function as a synecdoche — the figure of speech in which a part is used for the whole. Thus, repentance implies faith and faith implies repentance. One cannot exist without the other.
But which comes first, logically? Is it repentance? Is it faith? Or does neither have an absolute priority?
We cannot separate turning from sin in repentance and coming to Christ in faith. They describe the same person in the same action, but from different perspectives. In one instance (repentance), the person is viewed in relation to sin; in the other (faith), the person is viewed in relation to the Lord Jesus. But the individual who trusts in Christ simultaneously turns away from sin. In believing he repents and in repenting believes.
Read the whole post at Ligonier.