Worship is difficult to define, yet we would all say we can know it when we see it. This is due in part because worship is not confined to Sunday or to music.
It is in fact, a way of life. A life grounded in the Holy Trinity, where God the Father has planned our redemption and our holiness and blamelessness since before the foundation of the world (Ephesians 1:3-4) through his son, Jesus. It is a life where the Son has shed his blood for our sins, therefore making us not guilty of the sins we committed against God and our neighbor (Ephesians 1:7). It is a life where the Holy Spirit seals us for salvation (he applies salvation to us personally) and reminds us of our purpose as Christians, to worship God and serve him only (Ephesians 1:13-14).
Put another way, worship (public or private) is God's way of reorienting us toward him and away from sin and evil.
The Gospel, then is the chief healing agent, where Christ enters our broken lives because he lived a perfect life and suffered and died for the sake of his people.'