are Hell and suffering eternal?
That depends on which hell (?) you are talking about:
The Bible's temporary hell ( grave ), or the religious-myth hell of forever burning just being taught as Scripture.
To me, the churches of Christendom often wrongly teach a non-biblical permanent hell as being Scripture.
The Bible's hell is neither temporary suffering nor eternal suffering, but temporary sleep for the dead - Daniel 12:2,13
Sleep until Resurrection Day ( Jesus' millennium-long day of governing over Earth )
That is why the ' future tense ' is used at Acts of the Apostles 24:15 that there ' is going to be ' a resurrection.....
Then, the dead will be awakened from death's deep sleep.
Just as we are Not aware of the passing of time while asleep the dead know nothing according to Ecclesiastes 9:5
Know nothing but unconscious sleep as Jesus taught from the old Hebrew Scriptures at John 11:11-14
The dead sleep according to Psalms 6:5; Psalms 13:3; Psalms 115:17; Psalms 146:4
Does anyone righteous go to hell ______
The day righteous Jesus' died, the dead Jesus went to biblical hell according to Acts of the Apostles 2:27
If the Bible's hell was a permanent place, then Jesus would still be in hell.
Rather, dead Jesus just spent parts of 3 days in the grave in a sleep-like state ( R.I.P. Rest in Sleep ) before God resurrected the dead Jesus out of biblical hell ( the grave ) - Acts of the Apostles 3:15