The common New Testament word for worship is proskuneo, which means “to kiss toward, to kiss the hand, to bow down, to prostrate oneself.” The idea of worship is that one prostrates himself before a superior being with a sense of respect, awe, reverence, honor, and homage. In a Christian context, we simply apply this to God and prostrate ourselves before Him in respect and honor, paying Him the glory due His superior character.
Essentially, then, worship is giving – giving honor and respect to God. That is why we, as Christians, gather together on Sunday. We don’t gather to give respect to the preacher or those in the choir, we gather to give honor to God. The sermon and the music are just to be the stimuli that create the desire in our hearts to honor Him.