'Omen' in the Bible

Now the men took it as a good omen, and quickly understanding his meaning said, “Yes, your brother Ben-hadad lives.” Then the king said, “Go, bring him.” Then Ben-hadad came out to him, and Ahab had him come up into the chariot.

Now listen, Joshua, the high priest, you and your colleagues who are sitting in front of you—indeed they are men who are a symbol [of what is to come]—for behold, I am going to bring in My servant the Branch [in Messianic glory].