Stand up - The people had knelt to confess and to worship God Nehemiah 9:3. They were now to take the proper attitude for praise. Compare throughout the margin reference.
Related Commentaries of Nehemiah 9:5
Nehemiah 9:5
5 Then the Levites, Jeshua, and Kadmiel, Bani, Hashabniah, Sherebiah, Hodijah, Shebaniah, and Pethahiah, said, Stand up and bless the LORD your God for ever and ever: and blessed be thy glorious name, which is exalted above all blessing and praise.