Adam Clarke on Nehemiah 9:5

Stand up and bless the Lord your God - It is the shameless custom of many congregations of people to sit still while they profess to bless and praise God, by singing the Psalms of David or hymns made on the plan of the Gospel! I ask such persons, Did they ever feel the spirit of devotion while thus employed? If they do, it must be owned that, by the prevalence of habit, they have counteracted the influence of an attitude most friendly to such acts of devotion.