In Acts 9:15, God reveals Paul's commission as a chosen vessel, directly answering the 'what must I do' from verse 6.

In Acts 2:37, the crowd is pricked in heart and asks 'what shall we do?' — the same repentant question Saul asks here.

In Acts 16:30, the jailer asks 'what must I do to be saved?' — a similar urgent inquiry after divine intervention as Saul's here.

Acts 22:10 records Paul's own recounting of this same event — his question 'What shall I do, Lord?' and the Lord's response.

In Acts 24:25, Felix also trembles at Paul's words, but unlike Saul's immediate submission, he postpones his response — a contrast in reaction.

In Acts 26:16, Paul recounts the same command to rise, adding the purpose of his apostleship – a parallel account of this moment.

Psalm 25:12 promises that God teaches the way to those who fear Him — Saul's fearful question seeks exactly that guidance.

Isaiah 66:2 describes the contrite person who trembles at God's word — exactly Saul's posture here, trembling and submitting.

Philippians 2:12 calls believers to work out salvation with fear and trembling — Saul's trembling submission here exemplifies that posture.

In 1 Timothy 1:14-16, Paul reflects on his conversion as a pattern of grace, directly connecting to the mercy he received in Acts 9:6.

In James 4:6, God gives grace to the humble – precisely what Paul receives as he trembles and asks what to do.

In Galatians 1:15, Paul expands on his calling from birth, showing that the divine commission in Acts 9:6 was part of God's eternal plan.

In Galatians 1:16, Paul reveals the purpose of his calling—to preach Christ to Gentiles—filling out the 'what thou must do' from Acts 9:6.

Psalm 94:12 blesses those whom God chastens and teaches — Saul's blinding leads to his instruction.

Isaiah 57:18 depicts God healing and leading the penitent — Saul's conversion mirrors this restoration.

In Habakkuk 3:16, the prophet trembles at hearing God's voice — similar to Saul's trembling at the Lord's voice here.