The image on Palm Sunday is about something so primordial, so powerful and ancient, so deep, that it would shatter any kind of limits. It would break through any attempt to restrain it.
Paul wants us to see this “present evil age” is dominated by a theology of glory and “the age to come” is dominated by a theology of the cross. They are two ways of understanding and interpreting all of reality, but especially the ways and nature of God.