Promotion of the purposes of Islam
Uthman was a great Muslim. He followed the injunctions of Islam rigorously in letter as well as in spirit. He spent a greater part of the night in prayers. He knew the Holy Quran by heart, and would complete the recitation of the whole of the Holy Quran during a night. He held that the primary and basic responsibility of the Caliph was to protect and safeguard Islam, and take steps to promote its purposes and values. During his caliphate Uthman took several measures with a view to promoting the purposes of Islam.

Other measures of Uthman
Uthman introduced a few other measures as well to promote the purposes of Islam. On the occasion of the Friday prayers he introduced a second call or Takbir for the convenience of the people. He provided stipends for the first time for the 'Muezzins'. On the occasion of the Ramadhan, he increased the daily allowances of the people. He also arranged to supply free meals to all concerned at the time of the breaking of the fast. Uthman made special arrangement for the upkeep of mosques.