The Baha'i worships not the human personality of Baha'u'llah, but the Glory of God manifest through that personality.

He reverences Christ and Muhammad and all God's former Messengers to mankind, but he recognizes Baha'u'llah as the bearer of God's Message for the new age in which we live, as the Great World teacher Who has come to carry on and consummate the work of His predecessors.
Intellectual assent to a creed does not make a man a Baha'i, nor does outward rectitude of conduct.

Baha'u'llah requires of His followers wholehearted and complete devotion.

God alone has the right to make such a demand, but Baha'u'llah speaks as the Manifestation of God, and the Revealer of His Will.

Previous Manifestations have been equally clear on this point.