 He hasn't come as a lamp to shine under a bed. He hasn't come as a light to be hidden in the darkness. He hasn't come as a light to be hidden away somehow. And if people think for a moment that in his use of the parables that is exactly what is happening, then he needs to disavow them of that notion. And so Jesus is pointing out that it would be wrong to conclude that God has brought the kingdom of God near in the person of Jesus with the purpose of actually concealing that kingdom.