The purpose of the worship team is to usher in the presence of the Lord. To create an atmosphere for the anointing of God to flow. Ultimately, we want to lead the congregation into a passionate and exhilarating time of worship, where their hearts are ready to receive the Word of God. John 4:24 tells us that God is a Spirit: and they that worship him must worship him in spirit and in truth.
Psalm 34:1 …I will bless the Lord at all times: his praises shall continually be in my mouth.