First Commandment: "You shall have no other gods."
You shall have me alone as your God. What does it mean to have a god? Or, what is God?
Answer: A god means that from which we are to expect all good and in which we are to take refuge in all distress. So, to have a God is nothing other than trusting and believing Him with the heart.
A person's entire heart and all his confidence must be placed in God alone and in no one else. For to "have" God is not to take hold of Him with our hands or to put Him in a bag like money. Instead, to "have" Him means that the heart takes hold of Him and clings to Him, to trust in Him entirely. For this reason God wishes to turn us away from everything else that exists outside of Him and to draw us to Himself (John 6:44). For He is the only eternal good (Matthew 19:17). It is as through He would say, "Whatever you have previously sought from the saints, or for whatever things you have trusted in money or anything else, expect it all from Me. Think of Me as the one who will help you and pour out upon your richly all good things."
This is the meaning of true honor and worship of God, which pleases God, and which He commands under penalty of eternal wrath. The heart knows no other comfort or confidence than in Him and must not allow itself to be torn from Him, but risk and disregard everything. (paragraphs 1,2,13-16)
Condensed from CONCORDIA: THE LUTHERAN CONFESSIONS, copyright 2005,2006 by Concordia Publishing House. Used by permission. All rights reserved. To purchase a copy of CONCORDIA, call 800-325-3040.