Brothers, my heart's desire and prayer to God for Israel is, that they might be saved.…
The ignorance here spoken of is something more than the mere passive blindness of those who cannot help themselves because of the total darkness by which they are encompassed. It was very much the ignorance of those who would not open their eyes. There was an activity, a will in it, as much as there was in the other things ascribed to them in the "going about" to establish a different righteousness from that which they would not submit to. This forms the true principle on which the condemnation of unbelief rests. "They love the darkness rather than the light." Even as the Gentiles "liked not to retain God in their knowledge" — even so the Jews liked not in this instance to admit God into their knowledge, or give entertainment in their minds to that way of salvation which He had devised for the recovery of a guilty world. It is the part which the will has in it that makes ignorance the proper object of retribution; and so, when Christ cometh, He will take vengeance "on those who know not God and obey not the gospel."
(T. Chalmers, D.D.)
Parallel VersesKJV: Brethren, my heart's desire and prayer to God for Israel is, that they might be saved.