Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
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Acts 12:3

When he saw that it pleased the Jews, he proceeded to seize Peter also. This was during the days of unleavened bread.

Parallel Translations

KJVView canonical →
And because he saw it pleased the Jews, he proceeded further to take Peter also. (Then were the days of unleavened bread.)
King James Version

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