"True worship is the celebration of being in covenant fellowship with the sovereign and triune God, by means of the reverent adoration and spontaneous praise of God’s nature and works, the expressed commitment of trust and obedience to the covenant responsibilities, and the memorial reenactment of entering into covenant through ritual acts, all with the confident anticipation of the fulfillment of the covenant promises of glory.”In the book, Ross also suggests that we are probably not prepared to think and talk about worship until we have done some extensive meditation on passages like Exodus 24; Isaiah 6:1-3; Ezekiel 1:4-28; Matthew 17:1-13; 2 Corinthians 3:7-18; Revelation 1:9-20.
For all those who desire to be true worshipers, I don't think the definition or passages of Scripture can be ignored.