Eduard Schweizer on Universalism
There are passages in the New Testament describing the group of the blessed and that of the cursed ones (as in Matthew 25:34-41), and there are other passages declaring that "all men have been consigned to disobedience that he (God) may have mercy upon all" (as in Romans 11:32). We certainly need the warning of Matthew 25 that there is a dimension of eternity in which all our living on earth has to be seen. We also need, equally urgently, to be reminded of God's grace (as in Romans 11), from which nobody and nothing can separate us, which is stronger even than our disobedience. This twofold message is the word of God, as it has to live among us. But if we tried to build up a doctrine of an indispensable belief in hell or of universal salvation, we would put ourselves above God, since we would pretend to know exactly how he would have to act on the last day. How he will really act in the last judgment is beyond the threshold of human knowledge, and nobody is allowed to pass this threshold before it is revealed in the parousia of Christ.
From "Colossians 1:15-20", Review and Expositor, 87 (1990)