Not to be argumentative, but if worship and praise that included instruments was exclusive to the foundation of the Temple or specifically abrogated in the NT, then the rationale might hold water.

In my opinion, working to rationalize away instruments in worship is an attempt to "reign in" the excesses of Man in the expression of worship. It is actually "throwing the baby out with the bathwater", since our prime authority on worship praxis, particularly musical worship, is the Psalms... and they certainly do not ban instruments.

We'd do better understanding how we should follow the Lord's commands then regulate as opposed to ban. Otherwise, we run the risk of condemning what the Lord commands.

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-JD