The Non-Negotiable Demands of God

Cleave, serve, worship, trust...

From the first article of the Scots Confession (1560):

We confess and acknowledge one God alone, to whom alone we must cleave, whom alone we must serve, whom only we must worship, and in whom alone we put our trust. Who is eternal, infinite, immeasurable, incomprehensible, omnipotent, invisible; one in substance and yet distinct in three persons, the Father, the Son, and the Holy Ghost. By whom we confess and believe all things in heaven and earth, visible and invisible to have been created, to be retained in their being, and to be ruled and guided by his inscrutable providence for such end as his eternal wisdom, goodness, and justice have appointed, and to the manifestation of his own glory.