وَالْحَيَاةُ وَهِيَ صِفَةٌ أَزَلِيَّةٌ تُوجِبُ صِحَّةَ الْعِلْمِ
Life is an eternal attribute that establishes the suitability for knowledge.
Life (ḥayāh) here does not mean animal breathing, blood circulation, or bodily motion. In human beings life is related to the capacity for knowledge and awareness; divine life, however, depends on no bodily instruments and does not increase or diminish.
The phrase “makes knowledge fitting or possible” marks a rational relation between life and knowledge. It does not imply that God's knowledge was acquired later. Eternal life is affirmed together with eternal knowledge and power.