33 After spending some time there, they were sent off by the believers with the blessing of peace to return to those who had sent them.a

Read Acts 15:33 Using Other Translations

And after they had tarried there a space, they were let go in peace from the brethren unto the apostles.
And after they had spent some time, they were sent off in peace by the brothers to those who had sent them.
They stayed for a while, and then the believers sent them back to the church in Jerusalem with a blessing of peace.