Translation:

66. "The Lord of the heavens and the earth and all between Exalted in Might Able to enforce His will forgiving again and again."

Notes (Tafseer)

4220. In n. 2818 to xxii. 40, I have explained the full import of 'Aziz as a title applied to Allah, and I have expressed two of the leading ideas involved, in the two lines here. The argument in this Sura turns upon the contrast between earthly Power and the Divine Power: the one is impotent and the other is supreme.

4221. Gaffar is the emphatic intensive form, and I have accordingly translated it as "forgiving again and again". Cf. xx. 82.