Who advised the chief priest To release the apostles?

The chief priest was advised by Gamaliel, a respected Pharisee and a member of the Sanhedrin. In the Acts of the Apostles, Gamaliel cautioned the council to be careful in dealing with the apostles, arguing that if their movement was of human origin, it would fail, but if it was from God, they would not be able to stop it. His argument led to the decision to release the apostles rather than execute them.