This verb means to perceive, apprehend, or become aware through either physical senses or mental understanding. Classical usage applied it to sensory perception (hearing, smell, sight) and to mental grasp of ideas. Luke uses it in Luke 9:45 explaining why the disciples didn't understand Jesus' passion prediction: "it was concealed from them so that they might not perceive it." The verb suggests both the receiving of sensory information and the mental processing of its meaning. The divine passive indicates God's sovereign concealment of the prophecy's meaning until the appointed time for full comprehension.