David as well as other Karaites—for instance, Joseph al-Basir and Al-Ḳirḳisani—was a follower of the Motazilite kalam, especially in his chapter on the attributes of God, wherein he holds that, though we speak of these attributes as we speak of human attributes, the two can not be compared, since nothing comes to Him through the senses as is the case with man. God's "life" is a part of His "being", and the assumption of attributes in the Deity can in no way affect His unity. "Quality" can not be posited of the Deity. In his tenth chapter, on "Rewards and Punishments," David holds that these are eternal in the future world. This chapter has many points in common with Saadia, both drawing from the same source (Schreiner, "Der Kalam," p. 25).