immediately.

2 Corinthians 3:14
But their minds were closed. For to this day the same veil remains at the reading of the old covenant. It has not been lifted, because only in Christ can it be removed.

2 Corinthians 4:6
For God, who said, "Let light shine out of darkness, " made His light shine in our hearts to give us the light of the knowledge of the glory of God in the face of Jesus Christ.

and was.

Acts 2:38, 41
Peter replied, "Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit. . . .

Acts 13:12, 13, 37, 38
When the proconsul saw what had happened, he believed, for he was astonished at the teaching about the Lord. . . .

Acts 22:16
And now what are you waiting for? Get up, be baptized, and wash your sins away, calling on His name.'