'Silent' in the Bible

Then Absalom her brother said to her, “Has Amnon your brother been with you? But now keep silent, my sister, he is your brother; do not take this matter to heart.” So Tamar remained and was desolate in her brother Absalom’s house.

However, Absalom, whom we anointed over us, has died in battle. Now then, why are you silent about bringing the king back?”