בֵּ֣ית הַ֭לֵּוִי בָּרֲכ֣וּ אֶת־יְהוָ֑ה יִֽרְאֵ֥י יְ֝הוָ֗ה בָּרֲכ֥וּ אֶת־יְהוָֽה׃
ó casa de Levi, bendizei ao SENHOR; vós, os que temeis ao SENHOR, bendizei ao SENHOR.
Rashi on Psalms
those who fear the Lord These are the proselytes (I found this).
Metzudat David on Psalms
"Those who fear G-d" - the righteous among the gentiles.