Deuteronomy 12:4–You must not worship the Lord your God in this way.
The other religious people had others ways to worship their gods. They would perform sacrifices and rituals to their gods, but they would include things that were despicable and sinful in their worship practices. God wants it understood that what we do matters as much as why we do it. If we are doing the wrong thing, no amount of saying that it is “for God” will make it right. We must do the things of God in His way as that is what brings Him glory.
Father, I will follow You and show You that I love You by doing the things You command in the way You command them. I will not compromise what You desire.