Doing Things Our Own Way Does Not Please God

There are those who use Moses holding up the serpant in the wilderness as an excuse to have idols they bow to, this is foolishness.

God commanded to look at the surpant in the wilderness and the people misused it.
John 3:13-15 "…13No one has ascended into heaven except the One who descended from heaven—the Son of Man. 14Just as Moses lifted up the snake in the wilderness, so the Son of Man must be lifted up, 15that everyone who believes in Him may have eternal life.…"

 
It is far different for God to tell someone to observe something than it is for man to decide for himself what he will pay homage to.

 
Making up our own ideas to satisfy our need to see something is not the same as when God commands something.

Matthew 16:4
"4 An evil and adulterous generation wants a [a]sign; and so a [b]sign will not be given to it, except the sign of Jonah.” And He left them and went away."
Those who lack faith are those who need to see or do something to feel close to God. When we walk by faith, it is enough for Christ to be living in us as we worship in Spirit and in Truth. Christ is our Spirit that compels us to worship and even prays on our behalf.

Romans 8:34 "Christ Jesus is He who died, but rather, was raised, who is at the right hand of God, who also intercedes for us."

Human beings are constantly thinking they can do it better than God. Making up their own ideas while ignoring God's commands to worship their own way.