These verses (1 Timothy 2:4, 2 Peter 2:1, Ephesians 1:12, 2 Peter 2:9) are pretty good!
So, usually the two passages contra universalism that come out, and are supposed to be bedrock are:
Matthew 10:28 Do not fear those who kill the body but cannot kill the soul; rather fear him who can destroy both soul and body in hell.
2 Peter 2:4 For if God did not spare the angels when they sinned, but cast them into hell and committed them to chains of deepest darkness to be kept until the judgment; (It is interesting that two proofs for univ. are sandwiched around this one)
Anyway, when arguments about the scope of the "all"s, or discussions about Hell (not being Danten but thisworldly destruction) ensue with a non-universalist, often the two passages above are brought out as bedrock of ECT. It is interesting that two prooftexts for univ. are in the vicinity of 2 Peter 2:4. Yet, the language of 2:4 is strong, though perhaps not as knock-down as many ECT proponents believe it to be.
Mt 10:28 to me refers to a potentiality of God, not an actuality, but it is still harsh language, which sort of begs the ?, if God is a universalist, then why would He allow his Word to have this confusing stuff in it (tho perhaps that is a different issue)? It seems a shame that the truth can only be known thru study, though I guess that since God’s truth is somewhat distorted through human hands (depending on one’s stance on inerrancy), the less God is responsible?
Any ideas? What are other ECT texts that have been problematic to your universalism, and then found a positive way to construe them (that wasn’t contrived or ad hoc )?