Whether the sixth beatitude, "Blessed are the clean of heart," etc., responds to the gift of understanding?
Objections
❌ Objection 1 : It would seem that the sixth beatitude, "Blessed are the clean of heart, for they shall see God," does not respond to the gift of understanding. Because cleanness of heart seems to belong chiefly to the appetite. But the gift of understanding belongs, not to the appetite, but rather to the intellectual power. Therefore the aforesaid beatitude does not respond to the gift of understanding.
❌ Objection 2 : Further, it is written (Acts 15:9): "Purifying their hearts by faith." Now cleanness of heart is acquired by the heart being purified. Therefore the aforesaid beatitude is related to the virtue of faith rather than to the gift of understanding.
❌ Objection 3 : Further, the gifts of the Holy Ghost perfect man in the present state of life. But the sight of God does not belong to the present life, since it is that which gives happiness to the Blessed, as stated above (FS, Question [3], Article [8]). Therefore the sixth beatitude which comprises the sight of God, does not respond to the gift of understanding.