[to] whom [belong] the patriarchs, and from whom [is] the Christ according to human descent, who is God over all, blessed {forever}! Amen.

That is, [it is] not the children {by human descent} [who are] children of God, but the children of the promise are counted as descendants.

or "Who will descend into the abyss?" (that is, to bring Christ up from the dead).