Answer: We must believe in our hearts that God raised Jesus from the dead, (verse 9).
MORE INFORMATION AND/OR OTHER SCRIPTURE REFERENCES:
Acts 2:32: "God has raised this Jesus to life, and we are all witnesses of the fact."
Acts 4:10: "then know this, you and all the people of Israel: It is by the Name of Jesus Christ of Nazareth, Whom you crucified but Whom God raised from the dead, that this man stands before you healed."
Acts 5:30-32: "The God of our fathers raised Jesus from the dead--Whom you had killed by hanging Him on a tree. God exalted Him to His Own right hand as Prince and Savior that He might give repentance and forgiveness of sins to Israel. We are witnesses of these things, and so is the Holy Spirit, Whom God has given to those who obey Him."
Galatians 1:1: "Paul, an apostle--sent not from men nor by man, but by Jesus Christ and God the Father, Who raised Him from the dead..."
