Acts 18:26 So he began to speak boldly in the synagogue. When Aquila and Priscilla heard him, they took him aside and explained to him the way of God more accurately.
Have you ever heckled someone during a speech of some kind?
God teaches us a different way of doing things, and the apostles followed those teachings; they did not heckle, but they did take Apollos aside afterward and explain where he was wrong.
We need to encourage people to speak out about God and not discourage them through heckling.
If God wanted to stop us from ever telling a lie we would all be in a bad place; instead He encourages us to talk and then follows our mistakes with truth and discernment later.