In verses 1-12 with Herod Antipas (the usurping King of the Jews) entertaining guests who are "reclining" at his table. The end of the section ends with Herod (who has great visible wealth to be wasted) "serving" up one of his own subjects, John the Baptist's, head upon a platter.
In verses 13-21 we have Jesus, the true King of the Jews entertaining his 5000+ guests/subjects who "recline" on the grass. From Jesus' seeming poverty he "serves" his subjects a meal nearly ex nihilo from a few scraps.
So, we have two kings who are true to their natures. One serves a feast of death of his subjects. The other serves a feast of life to his subjects.