But Jehosheba, the daughter of King Joram, sister of Ahaziah, took Joash the son of Ahaziah and stole him away from among the king's sons who were being put to death, and she put him and his nurse in a bedroom. Thus they hid him from Athaliah, so that he was not put to death.
2 Kings 11:2

Maybe Jehosheva prayed for guidance (the text doesn't say), but she didn't wait for a sign. She saw a problem and she acted. Sometimes praying and "waiting on the Lord" is just a fear of doing what we know is right.