2 Thessalonians 1:5

A manifest token [ε ν δ ε ι γ μ α]. N. T. o. Comp. endeixiv, Philippians 1:28. The token is the patience and faith with which they endure persecution and tribulation. It is a token of the righteous judgment of God, in that it points to the future glory which God will confer at the final judgment and the righteous award which will be dispensed to the persecutors. Similarly Philippians 1:28.

That ye may be counted worthy. The structure of the sentence is loose. These words should be directly connected with righteous judgment, and denote the purport of that judgment - their assignment to an inheritance in the kingdom of God.

Of the kingdom of God [τ η ς β α σ ι λ ε ι α ς τ ο υ θ ε ο υ]. The phrase is not frequent in Paul. basileia qeou four times; basileia tou cristou kai qeou kingdom of Christ and of God, once. Here in the eschatological sense - the future, consummated kingdom, the goal of their striving and the recompense of their suffering. See on Luke 6:20.