'Silent' in the Bible

Then he asked them, "Is it lawful to do good or to do evil on Sabbath days, to save a life or to destroy it?" But they remained silent.

But they kept silent, because they had argued on the road with one another about who was the greatest.

But he kept silent and didn't answer at all. The high priest asked him again, "Are you the Messiah, the Son of the Blessed One?"