What letter in the bible lists the faithful?

Answer 1

I think you are looking for the faithful ones mentioned in the book of Hebrews.

Here Paul mentions by name individuals who were noted for their faith. He mentions Abel, Enoch, Noah, Abraham, Sarah, Isaac, Jacob, Joseph, Moses, Rahab and others....

(Hebrews 10:32-12:3) 32 However, keep on remembering the former days in which, after YOU were enlightened, YOU endured a great contest under sufferings, 33 sometimes while YOU were being exposed as in a theater both to reproaches and tribulations, and sometimes while YOU became sharers with those who were having such an experience. 34 For YOU both expressed sympathy for those in prison and joyfully took the plundering of YOUR belongings, knowing YOU yourselves have a better and an abiding possession. 35 Do not, therefore, throw away YOUR freeness of speech, which has a great reward to be paid it. 36 For YOU have need of endurance, in order that, after YOU have done the will of God, YOU may receive the [fulfillment of the] promise. 37 For yet "a very little while," and "he who is coming will arrive and will not delay." 38 "But my righteous one will live by reason of faith," and, "if he shrinks back, my soul has no pleasure in him." 39 Now we are not the sort that shrink back to destruction, but the sort that have faith to the preserving alive of the soul. 11 Faith is the assured expectation of things hoped for, the evident demonstration of realities though not beheld. 2 For by means of this the men of old times had witness borne to them. 3 By faith we perceive that the systems of things were put in order by God's word, so that what is beheld has come to be out of things that do not appear. 4 By faith Abel offered God a sacrifice of greater worth than Cain, through which [faith] he had witness borne to him that he was righteous, God bearing witness respecting his gifts; and through it he, although he died, yet speaks. 5 By faith E′noch was transferred so as not to see death, and he was nowhere to be found because God had transferred him; for before his transference he had the witness that he had pleased God well. 6 Moreover, without faith it is impossible to please [him] well, for he that approaches God must believe that he is and that he becomes the rewarder of those earnestly seeking him. 7 By faith Noah, after being given divine warning of things not yet beheld, showed godly fear and constructed an ark for the saving of his household; and through this [faith] he condemned the world, and he became an heir of the righteousness that is according to faith. 8 By faith Abraham, when he was called, obeyed in going out into a place he was destined to receive as an inheritance; and he went out, although not knowing where he was going. 9 By faith he resided as an alien in the land of the promise as in a foreign land, and dwelt in tents with Isaac and Jacob, the heirs with him of the very same promise. 10 For he was awaiting the city having real foundations, the builder and maker of which [city] is God. 11 By faith also Sarah herself received power to conceive seed, even when she was past the age limit, since she esteemed him faithful who had promised. 12 Hence also from one [man], and him as good as dead, there were born [children] just as the stars of heaven for multitude and as the sands that are by the seaside, innumerable. 13 In faith all these died, although they did not get the [fulfillment of the] promises, but they saw them afar off and welcomed them and publicly declared that they were strangers and temporary residents in the land. 14 For those who say such things give evidence that they are earnestly seeking a place of their own. 15 And yet, if they had indeed kept remembering that [place] from which they had gone forth, they would have had opportunity to return. 16 But now they are reaching out for a better [place], that is, one belonging to heaven. Hence God is not ashamed of them, to be called upon as their God, for he has made a city ready for them. 17 By faith Abraham, when he was tested, as good as offered up Isaac, and the man that had gladly received the promises attempted to offer up [his] only-begotten [son], 18 although it had been said to him: "What will be called 'your seed' will be through Isaac." 19 But he reckoned that God was able to raise him up even from the dead; and from there he did receive him also in an illustrative way. 20 By faith also Isaac blessed Jacob and E′sau concerning things to come. 21 By faith Jacob, when about to die, blessed each of the sons of Joseph and worshiped leaning upon the top of his staff. 22 By faith Joseph, nearing his end, made mention of the exodus of the sons of Israel; and he gave a command concerning his bones. 23 By faith Moses was hid for three months by his parents after his birth, because they saw the young child was beautiful and they did not fear the order of the king. 24 By faith Moses, when grown up, refused to be called the son of the daughter of Phar′aoh, 25 choosing to be ill-treated with the people of God rather than to have the temporary enjoyment of sin, 26 because he esteemed the reproach of the Christ as riches greater than the treasures of Egypt; for he looked intently toward the payment of the reward. 27 By faith he left Egypt, but not fearing the anger of the king, for he continued steadfast as seeing the One who is invisible. 28 By faith he had celebrated the passover and the splashing of the blood, that the destroyer might not touch their firstborn ones. 29 By faith they passed through the Red Sea as on dry land, but on venturing out upon it the Egyptians were swallowed up. 30 By faith the walls of Jer′i·cho fell down after they had been encircled for seven days. 31 By faith Ra′hab the harlot did not perish with those who acted disobediently, because she received the spies in a peaceable way. 32 And what more shall I say? For the time will fail me if I go on to relate about Gid′e·on, Ba′rak, Samson, Jeph′thah, David as well as Samuel and the [other] prophets, 33 who through faith defeated kingdoms in conflict, effected righteousness, obtained promises, stopped the mouths of lions, 34 stayed the force of fire, escaped the edge of the sword, from a weak state were made powerful, became valiant in war, routed the armies of foreigners. 35 Women received their dead by resurrection; but other [men] were tortured because they would not accept release by some ransom, in order that they might attain a better resurrection. 36 Yes, others received their trial by mockings and scourgings, indeed, more than that, by bonds and prisons. 37 They were stoned, they were tried, they were sawn asunder, they died by slaughter with the sword, they went about in sheepskins, in goatskins, while they were in want, in tribulation, under ill-treatment; 38 and the world was not worthy of them. They wandered about in deserts and mountains and caves and dens of the earth. 39 And yet all these, although they had witness borne to them through their faith, did not get the [fulfillment of the] promise, 40 as God foresaw something better for us, in order that they might not be made perfect apart from us. 12 So, then, because we have so great a cloud of witnesses surrounding us, let us also put off every weight and the sin that easily entangles us, and let us run with endurance the race that is set before us, 2 as we look intently at the Chief Agent and Perfecter of our faith, Jesus. For the joy that was set before him he endured a torture stake, despising shame, and has sat down at the right hand of the throne of God. 3 Indeed, consider closely the one who has endured such contrary talk by sinners against their own interests, that YOU may not get tired and give out in YOUR souls.