Tafsir of Al-Hajj 22:6

ذلك بٲن الله هو الحق

That is because Allah: He is the Truth, means, the Creator, the Controller, the One Who does as He wills.

وأنه يحيي الموتى

and it is He Who gives life to the dead, means, just as He gives life to the dead earth and brings forth from it all these kinds of vegetation

إن الذى أحيها لمحى الموتى إنه على كل شء قدير

Verily, He Who gives it life, surely is able to give life to the dead. Indeed He is able to do all things. (41:39)

إنما أمره إذآ أراد شييا أن يقول له كن فيكون

Verily, His command, when He intends a thing, is only that He says to it, "Be!'' -- and it is! (36:82)

وأنه على كل شيء قدير

and it is He Who is able to do all things