Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
KJV

Acts 12:16

But Peter continued knocking: and when they had opened the door, and saw him, they were astonished.

Parallel Translations

WEBView canonical →
But Peter continued knocking. When they had opened, they saw him and were amazed.
World English Bible