Did God create man to worship and praise Him? I heard it many times from some Christians and even preachers that God created us to worship and praise Him. I think this idea came from the fact that Psalms contain many phrases like "Praise the Lord" and many words related to worship. I'm still not convinced with verses from Psalms that the main purpose of creating us was to praise and worship God. The purpose of creating human, as I see from Genesis 1:28 is to multiply, fill the earth and subdue it.

Is there any verses from the Bible that clearly indicates we were created mainly to praise and worship God?
Actually, the answer to that question is longer than one should post on a question and answer site, but I would recommend the book "Desiring God" by John Piper. He explains it excellently , but in summary he says this:


  God is the greatest thing that exists, ever has existed  or ever will exist. Therefore, for us to glory anything else, would be sin, as there is nothing greater than God, there is no calling greater than praising God. This is true not only for us, but surprisingly also for God himself, he being the greatest , to glory in anything else would be idolatry. Therefore, if the greatest thing God can do is give himself glory, and no created thing does can be greater than God, the greatest thing we can do (our purpose, you might say) is to glory him.