If the Gentile is one of the "pious of the nations of the world" who keep the Seven Noahide Commandments as their part in the Torah of Moses102 because he is commanded to do them, and he is careful in their proper observance according to the Noahide Code, and he is involved in learning the parts of Torah that relate to these seven commandments, he is indeed considered before God as being as honorable as a proper Jewish High Priest who served in the Holy Temple.103 A hint to this is that Shem, the son of Noah, was completely righteous,104 and he was involved in Torah study.105 Thus the verse praises him, saying, "he was a 'priest' (kohen in Hebrew) to God on High."106
102 Sefer Mitzvot Katan ("S'MaK") in the foreword, and Meiri ibid.
103 Tractate Sanhedrin 59a.
104 See Tractate Sukkah 52b, and the explanation by Rashi there.
105 Rashi on Genesis 25:22, according to the Midrash Bereishit Rabbah there.
106 Genesis 14:18, based on Tractate Nedarim 32; Rashi on this verse says that "Malki-tzedek" was Noah's son, Shem. "Kohen" in Scripture can also refer to a person of esteem; see II Samuel 8:18 about King David's sons (the Divine Code by Rabbi Moshe Weiner, Ask Noah International, 2018, p 78).
Yeah it's hard enough for us to stand alone as us, but when you have a Noachide 99% of the time it's him, a yochid (alone). I learned a story in yeshiva about the yochid. Abraham was talking to the evil king Nimrod and Nimrod said I worship fire. Abraham said then let's worship water, it puts fire out. Nimrod said, "let us". Abraham said so lets worship wind that can make waves, and he said kay again, so Abraham said lets worship man that can withstand wind when it blows and Nimrod said "this is foolishness, I bow only to fire" and then decided to throw him into a fire. Now the angel Gabriel who is in charge of fire said awesome Hashem, let me handle this one, but Hashem said, "no, Abraham is a yochid (alone, one, other stuff that basically means everyone is on one side and he's on the other) and I am a Yochid, and us Yochids stick together", and so the fire didn't burn Abraham. Then his brother who didn't really believe in G-d like pretended he was all tough like Abraham so he got thrown in too, but he cooked.
Then Gabriel went to Hashem and was all like "I totally wanted to do a mitzvah and you took it", so Hashem's like cool, I'll make it up to you, so a thousand years later there were three yochids in Babylon, their names in Bablyonian were Shadrak, Mishak and Abbendigo or something that sounds like that, and Hashem said "Kay Gabriel, now's your chance", and they threw them into the fire, and angel Gabriel decided to put on a big show because he's all cool and stuff and made the fire inside feel more temperate and comfortable the hotter they'd make it, and make the outside where all the Babylonians were hotter the more the fire burned, so they all cooked.
There's a hundred morals I could glean lying down and I'm small in Torah compared to so many I've met, but the one I want you to take is that Hashem is jumping in front of angels jumping to help someone who stands for what's right in a sea of the opposite, even the fires in your life bring comfort and justice.