Someone asked me:
Why do we worship God? Why not the gospel, or the power of God? Isn't God using the power to create us and everything else? If that's the case, why worship Him and not the power?
Our understanding is something that is capable of eternal progression. It is capable of reaching the understanding of God, but it does not start developed to that degree.
The truth scales infinitely. God presents it in an individually adapted way. He reveals truth to the degree the individual is prepared to perceive, accurately value, and live according to it. To reveal more than that would cause harm rather than benefit.
In what might be the clearest description of ideal human behavior in scripture, we read:
13 But behold, that which is of God inviteth and enticeth to do good continually; wherefore, every thing which inviteth and enticeth to do good, and to love God, and to serve him, is inspired of God.
15 For behold, my brethren, it is given unto you to judge, that ye may know good from evil; and the way to judge is as plain, that ye may know with a perfect knowledge, as the daylight is from the dark night.
16 For behold, the Spirit of Christ is given to every man, that he may know good from evil; wherefore, I show unto you the way to judge; for every thing which inviteth to do good, and to persuade to believe in Christ, is sent forth by the power and gift of Christ; wherefore ye may know with a perfect knowledge it is of God.
17 But whatsoever thing persuadeth men to do evil, and believe not in Christ, and deny him, and serve not God, then ye may know with a perfect knowledge it is of the devil.... (Moroni 7)
Why is it put this way? Because "good" and "evil" are nice variables that must be interpreted through the lens of an individual's understanding. It provides a generalized template that the individual can apply to every circumstance: Do what improves. Don't do what degrades. Do what benefits. Don't do what harms.
This is much preferred to a laundry list, which would need to be as infinite as reality itself to cover every circumstance. This is why King Benjamin gave the following disclaimer after his brief list of sins:
And finally, I cannot tell you all the things whereby ye may commit sin; for there are divers ways and means, even so many that I cannot number them. (Mosiah 4:29)
If a person were honest, intelligent, and good, the following would be sufficient to guide them for all eternity: always do everything you can to improve as much as possible.
All are not honest, intelligent, or good. Most are none of the three. In his mercy, God presents the truth is more explicit but less perfect ways, adapted as needed to hearer's preparation.
To cater to those who are less honest, intelligent, or good, other representations of this same truth must be given. These other representations will be less in the form of principle and more in the form of rules.
This brings us to the kernel of the question: why does God make himself the center of worship, instead of "the truth" or some form of his power?
First, understand what his power really is. His power comes from who and how he is--his character. It can't be possessed by, perceived by, or appreciated by anyone except to the extent they possess it themselves. Attempting to describe it to another outside of the context of the personage of God will result not in raising a person closer to God, but in vainly bringing God down to man. Telling them these things will only result in their assuming they already have what they do not, and that they already are what they can't even understand.
How do you raise a person up to a standard which they cannot possibly understand? First, you give them rules. Because they do not possess love for God, you give them rules based on fear of God. Those who obey will have greater capacity to understand the character of God. To them, you can reveal more rules. Eventually, this cycle yields principles. Eventually, this cycle yields God's character in you through your love of him and your possession of the same love as exists in him.
God does not tell us to worship him for some self-centered reason. Everything he does is for our benefit, not his. The reason he does things the way he does is to maximize our benefit in spite of our weakness.
In the case of his telling us to worship him instead of worshiping the truth or the power, it is no different. In this case, they are one and the same. Promoting worship of God helps protect us from the harm wicked people would do if he said to worship the truth or the power while making available the same outcomes as the righteous would find if he said to worship the truth or the power. This is because all truth and all power you will ever know will be found in God. Therefore, worshipping God will lead you to those things. Meanwhile, if you sought them directly, you would find neither, because you would search for them in your native, natural, fallen understanding.
Everything you ever learn will first have been learned by God. This is why Jacob truthfully said:
O how great the holiness of our God! For he knoweth all things, and there is not anything save he knows it. (2 Nephi 9:20)
When we say God has all power, all knowledge, etc., it is only true relative to us.
All truth is independent in that sphere in which God has placed it, to act for itself, as all intelligence also; otherwise there is no existence. (D&C 93:30)
1 I Am the true vine, and my Father is the husbandman.
2 Every branch in me that beareth not fruit he taketh away: and every branch that beareth fruit, he purgeth it, that it may bring forth more fruit.
3 Now ye are clean through the word which I have spoken unto you.
4 Abide in me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me.
5 I am the vine, ye are the branches: He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing.
6 If a man abide not in me, he is cast forth as a branch, and is withered; and men gather them, and cast them into the fire, and they are burned.
7 If ye abide in me, and my words abide in you, ye shall ask what ye will, and it shall be done unto you.
8 Herein is my Father glorified, that ye bear much fruit; so shall ye be my disciples.
9 As the Father hath loved me, so have I loved you: continue ye in my love.
10 If ye keep my commandments, ye shall abide in my love; even as I have kept my Father’s commandments, and abide in his love.
11 These things have I spoken unto you, that my joy might remain in you, and that your joy might be full.
12 This is my commandment, That ye love one another, as I have loved you. (John 15)
Everything in our current or future progression lies in God's past progression. Everything we know, everything we receive, and everything we can be is in him.
This is the pattern the Son learned from the Father:
Then answered Jesus and said unto them, Verily, verily, I say unto you, The Son can do nothing of himself, but what he seeth the Father do: for what things soever he doeth, these also doeth the Son likewise. (John 5:19)
It is the pattern the Son shows us:
Verily, verily, I say unto you, this is my gospel; and ye know the things that ye must do in my church; for the works which ye have seen me do that shall ye also do; for that which ye have seen me do even that shall ye do; (3 Nephi 27:21)
It is the pattern the servants of God show us:
Those things, which ye have both learned, and received, and heard, and seen in me, do: and the God of peace shall be with you. (Philippians 4:9)