Psalm 95: 1-11
Hebrews 4:7 is a direct quote to Psalm 95:8
1-7: Speaks of worship, glorifying and praising
8-11: Speaks of Warning, provoking
There is a change between the OT and the NT because the altar is now the cross, the offering was Jesus, and the offerer was God.
They that worship must worship in Spirit and in Truth. John 4:19