Why do you put your left hand behind your back when ushering in church?

Putting the left hand behind the back when ushering in church is a traditional practice that is rooted in historical etiquette and protocol. In many cultures, the left hand is considered to be impure or disrespectful, so by keeping it behind the back, individuals show reverence and respect during religious ceremonies. This practice also helps maintain a sense of decorum and uniformity among ushers during church services.