בֵּ֣ית הַ֭לֵּוִי בָּרֲכ֣וּ אֶת־יְהוָ֑ה יִֽרְאֵ֥י יְ֝הוָ֗ה בָּרֲכ֥וּ אֶת־יְהוָֽה׃
Domu Lewi, sławcie Boga, bogobojni, sławcie Boga.
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.