Silence

Isaiah 30:15 - For thus saith the Lord GOD, the Holy One of Israel; In returning and rest shall ye be saved; in quietness and in confidence shall be your strength: and ye would not.
Isaiah 53:7 - He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth.
Lamentations 3:26 - It is good that a man should both hope and quietly wait for the salvation of the LORD.
Habakkuk 2:20 - But the LORD is in his holy temple: let all the earth keep silence before him.
Romans 10:17 - So then faith cometh by hearing, and hearing by the word of God.
James 1:19 - Wherefore, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath:
Revelation 8:1 - And when he had opened the seventh seal, there was silence in heaven about the space of half an hour.