mark 12:25 For when they shall rise from the dead, they neither marry, nor are given in marriage; but are as the angels which are in heaven. - Free Bible Online

      25. For when they shall rise from the dead, they neither marry, nor are given in marriage--"neither can they die any more" (Lu 20:36). Marriage is ordained to perpetuate the human family; but as there will be no breaches by death in the future state, this ordinance will cease.
      but are as the angels which are in heaven--In Luke (Lu 20:36) it is "equal unto the angels." But as the subject is death and resurrection, we are not warranted to extend the equality here taught beyond the one point--the immortality of their nature. A beautiful clause is added in Luke (Lu 20:36) --"and are the children of God"--not in respect of character, which is not here spoken of, but of nature--"being the children of the resurrection," as rising to an undecaying existence (Ro 8:21, 23), and so being the children of their Father's immortality (1Ti 6:16).

JFB.