God
Why does God ask us to worship him?
This can sound, at first, like God requiring flattery to feel good about himself—but Christian theology understands worship very differently, as something ultimately for our benefit, not God's.
Classical Christian theology holds that God lacks nothing and needs nothing from anyone, including praise—he's already complete in himself. Worship, then, isn't God collecting something he's missing; it's the appropriate, healthy human response to recognizing what's actually, objectively true and supremely valuable.
Many Christian thinkers compare this to how we naturally respond to anything genuinely excellent—we don't experience admiring a stunning view or a beautiful piece of music as a chore performed for someone else's benefit; the admiration itself is part of fully experiencing and enjoying the thing. Worship, on this view, is less like an ego-driven demand and more like the natural, completing response to encountering something of supreme, real worth.
Bible quotations in these answers are generally taken from the Christian Standard Bible®, Copyright © 2017 by Holman Bible Publishers. Used by permission. Christian Standard Bible® and CSB® are federally registered trademarks of Holman Bible Publishers. Some biblical wording may be paraphrased or follow other translations.