Mark 7:7 They worship me in vain; their teachings are rules taught by men.
God doesn’t want to be worshipped in a legalistic manner for what matters to him is the heart.
Religion is established by men. It is doing a series of activities so that you please God. But God wants an untamed, unrestrained love. Religious practices that do not change the heart are worships in vain.
Be very careful that the things we do are from the heart, moved by the Holy Spirit and not by rules set by men.