Joshua here perceived in the spirit that when people praise and worship they are involved in a spiritual battle, have you had any ecstatic/spiritual experience via praise and worship of God before? Kindly share!
Exo 32:17 And when Joshua heard the noise of the people as they shouted, he said unto Moses, There is a noise of war in the camp.
Exo 32:18 And he said, It is not the voice of them that shout for mastery, neither is it the voice of them that cry for being overcome: but the noise of them that sing do I hear.

Not true! There is no power in worship for the one who is doing the worship. But there is a lot of power for the ONE who is being worshiped. The one doing the worship gives up, hands over, submits and transfers his own creative powers to the one he/she is worshiping. The act of worship is nothing more or nothing less than creative energy transfer from one being to another that goes on indefinitely. Energy sucking, if you will.

Only malevolent entities demand worship because in order to perpetrate their malevolence(evil deeds), they need a lot of creative energies which they do not have, so they get them from the worshipers. The more worshipers they have, the more creative power is available to them to suck, the more power they have to perpetrate their evil. Why is this planet awash with wars and evil deeds even though people worship and pray to gods, they know nothing about, to give them peace on earth?

Benevolent entities(positive entities) already have creative powers in abundance (by vitue of their benevolent nature) so they don't need to draw from others via worship. Besides, it does not cost much energy to use creative powers in creating positive things in the universe. Benevolent entities help us humans use our creative powers in making a better, more peaceful, more harmonious world for ourselves to exist in.

Therefore, whenever you are asked to worship an entity, be well assured that that entity is malevolent or evil and is sucking your creative energies from you which will leave you drained and powerless and dependent on that which you worship, as well as, will use the energy which you give it to cause chaos in the world in which you live.