Acts 12:5

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

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

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

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

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