The bible says no other Gods and the way I understand that verse is, that you have to mute out your desire and interest in gods of power and money and praise so that you can devote all that higher energy to the worship of God.
Just like when you are trying to have a conversation with a tv show in the background: shutting the tv off makes carrying on the conversation easier, and muting out the idols of the world by deferring your interest to spiritual things makes having a mental conversation with God less challenging.
You could try to do both but it would leave you unhappy and unsatisfied, which is why the bible has a muting out policy for other interests.
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The Sound of Silence