What meaning of "qunūt" is intended in the usage of the term "qānitūn" in this verse?

Imām Ibn al-Jawzī (d. 597/1201) summarized the scholars' opinions in his book "Zād al-Masīr" as follows:

1. Obedience. [Ibn ʿAbbās, Ibn Jubayr, Mujāhid, Qatādah]
2. Acknowledging servitude (to Him). [ʿIkrimah, al-Suddī]
3. Standing. [al-Ḥasan, al-Rabīʿ] According to this view, there are two interpretations: (i) It means standing to bear witness to their servitude (to God). (ii) It means standing before Him on the Day of Resurrection.