GOD'S WORD® Translation
So Peter was kept in prison, but the church was praying very hard to God for him.

American Standard Version
Peter therefore was kept in the prison: but prayer was made earnestly of the church unto God for him.

Berean Study Bible
So Peter was kept in prison, but the church was fervently praying to God for him.

Douay-Rheims Bible
Peter therefore was kept in prison. But prayer was made without ceasing by the church unto God for him.

English Revised Version
Peter therefore was kept in the prison: but prayer was made earnestly of the church unto God for him.

King James Bible
Peter therefore was kept in prison: but prayer was made without ceasing of the church unto God for him.

World English Bible
Peter therefore was kept in the prison, but constant prayer was made by the assembly to God for him.

Young's Literal Translation
Peter, therefore, indeed, was kept in the prison, and fervent prayer was being made by the assembly unto God for him,

Acts 12:5 Additional Translations ...