we see
Exodus 12:13 And the blood shall be to you for a token on the houses where you are: and when I see the blood, I will pass over you...
Exodus 13:9,10 And it shall be for a sign to you on your hand, and for a memorial between your eyes, that the LORD's law may be in your mouth...
Judges 6:17 And he said to him, If now I have found grace in your sight, then show me a sign that you talk with me.
Ezekiel 20:12 Moreover also I gave them my sabbaths, to be a sign between me and them, that they might know that I am the LORD that sanctify them.
Hebrews 2:4 God also bearing them witness, both with signs and wonders, and with divers miracles, and gifts of the Holy Ghost...
no more
1 Samuel 3:1 And the child Samuel ministered to the LORD before Eli. And the word of the LORD was precious in those days; there was no open vision.
Amos 8:11 Behold, the days come, said the Lord GOD, that I will send a famine in the land, not a famine of bread, nor a thirst for water...
Micah 3:6 Therefore night shall be to you, that you shall not have a vision; and it shall be dark to you, that you shall not divine...