Since the Bible says that "True worshippers must worship in spirit and in truth," we must worship according to God's Word so our worship won't be in vain or ignorance.
||"But the hour is coming, and now is, when
the true worshipers will worship the Father in spirit
and truth ; for the Father is seeking such to worship Him. God is Spirit, and those who worship Him must worship in spirit and truth."
in vain they worship Me, Teaching as doctrines the
commandments of men.
||...'You shall worship the LORD your God, and Him only you shall serve.'
||I found an altar with this inscription, TO THE UNKNOWN GOD. Whom therefore ye ignorantly worship,
him declare I unto you. (KJV)
|| You shall not add to the word which I command you, nor take from it, that you may keep the commandments of the LORD your God which I command you.
|2 John 1:9
||Anyone who goes too far and does not abide in the teaching of Christ, does not have God; the one who abides in the teaching, he has both the Father and the Son. (NAS)