Most Evangelical Christians (including those within the Reformed camp) would not look to the book of Leviticus to derive its order of worship. Reformed Christians pride themselves on being a people who follow the Regulative Principle of Worship (i.e. we must only do what God commands us to do in worship), but when it comes to the rules for the RPW, we more often than not leave it within the confines of the New Covenant Scriptures.

No, rather this is a sacrifice that is in keeping with each and every sacrifice to God we see in all of scripture. He defines what it is and how it is brought. And he has clearly shown us in his word, by giving us the very words to bring to him as a sacrifice of praise from our lips: the Psalms. God will not accept a wrong or unauthorized sacrifice.

A natural question would be “where did we get the Psalms from?” Well, of course, we understand that the Psalms were written by the inspiration of the Holy Spirit, but other than being written by Him, where did we get them?

This nullification of the purity in worship amongst the catholic (universal) church has been the result of believing that it is not limited by the scriptures in matters of worship and what's more, some “have come to regard divine worship as more or less a matter of indifference, to be determined according to human preference or convenience.”

It seems that many find this command to be rather innocuous. In the first instance, we might say, well “I’m not making for myself a ‘carved image’ or any likeness of anything in heaven, on the Earth, or in the water, and I’m certainly not bowing down to them or serving them.” And this is more than likely an accurate statement, at least as it appears outwardly. However, we cannot be a people that look to the letter of the law and no further.