I have a lot of faith that “His mercy endures forever,” as the psalmist says.
I have faith that “God is love,” as St John says. I have faith that “God is the savior of all, but especially of those who believe,” as St Paul says (1 Tim 4:10).
If you go back through the history of the church on this issue of eschatology, you will not find many advocates of “annihilationism” (the soul being destroyed by the lake of fire). So no, the debate about Hell hasn’t been between St Augustine’s vision of eternal-Hell and annihilationism; but rather between eternal-Hell and a limited, finite Hell with the entirety of humanity eventually returning to God, though not on an equal standing before God (the last will be first and the first, last). That has been the proper debate over the centuries.
“Father forgive them. They don’t know what they’re doing.” - Luke 23:34
“And I, if I am lifted up will draw all men to me.” - John 12:32
“I pray not only for them, but also for those who will believe in me through their word,
And I have given them the glory you gave me, so that they may be one, as we are one,
I in them and you in me, that they may be brought to perfection as one, that the world may know that you sent me, and that you loved them even as you loved me.” - John 17:21-23
Commentary from some Church Fathers on these verses from Matthew 7:
AUGUSTINE. (Serm. in Mont. ii. 22.) The Lord had warned us above to have a heart single and pure with which to seek God; but as this belongs to but few, He begins to speak of finding out wisdom. For the searching out and contemplation whereof there has been formed through all the foregoing such an eye as may discern the narrow way and strait gate; whence He adds, Enter ye in at the strait gate.
GLOSS. (ord.) Though it be hard to do to another what you would have done to yourself; yet so must we do, that we may enter the strait gate.
Though love be wide, yet it leads men from the earth through difficult and steep ways. It is sufficiently difficult to cast aside all other things, and to love One only, not to aim at prosperity, not to fear adversity.
CHRYSOSTOM. Let us not therefore be sad when many sorrows befal us here, for the way is strait, but not the city; therefore neither need we look for rest here, nor expect any thing of sorrow there. When He says, Few there be that find it, He points to the sluggishness of the many, and instructs His hearers not to look to the prosperity of the many, but to the toils of the few.
JEROME. Attend to the words, for they have an especial force, many walk in the broad way—few find the narrow way. For the broad way needs no search, and is not found, but presents itself readily; it is the way of all who go astray. Whereas the narrow way neither do all find, nor when they have found, do they straightway walk therein. Many, after they have found the way of truth, caught by the pleasures of the world, desert midway.