'Silent' in the Bible

Hannah prayed and said,“My heart rejoices and triumphs in the Lord;My horn (strength) is lifted up in the Lord,My mouth has opened wide [to speak boldly] against my enemies,Because I rejoice in Your salvation.

He will keep the feet of his saints, and the wicked shall be silent in darkness; for by strength shall no man prevail.

And the sons of Israel say unto Samuel, 'Keep not silent for us from crying unto Jehovah our God, and He doth save us out of the hand of the Philistines.'

But some troublemakers said, "How can this man deliver us?" They despised him and did not bring him a gift. But Saul remained silent.