'Obedience' in the Bible

“What are your multiplied sacrifices to Me [without your repentance]?”Says the Lord.“I have had enough of [your] burnt offerings of ramsAnd the fat of well-fed cattle [without your obedience];And I take no pleasure in the blood of bulls or lambs or goats [offered without repentance].

“Also the foreigners who join themselves to the Lord,To minister to Him, and to love the name of the Lord,To be His servants, everyone who keeps the Sabbath without profaning itAnd holds fast to My covenant [by conscientious obedience];