Kehillah in Thessalonika II 1:5

Orthodox Jewish Bible

⁵ This is kluhr (obvious) that here is a manifest siman (sign, indication) of the yashar mishpat (righteous judgment) of Hashem intended for you to be deemed worthy of the Malchut Hashem, on behalf of which also you undergo [Chevlei Moshiach] yissurim.