Acts 2:37
When the people heard this, they were cut to the heart and said to Peter and the other apostles, 'Brothers, what shall we do?' — the cutting of hearts (katanyssō, pricked, wounded, pierced) indicates the Spirit's conviction (cf. John 16:8); conscience awakens to guilt and need. The question 'What shall we do?' (ti poiēsomen, what shall we perform) seeks the path of repentance and restoration. The crowd's openness is the Spirit's work.