Vv. 37, 38, make the Shin strophe, and simply reiterate the antithesis which has moulded the whole psalm, with the addition of that reference to a second generation which appeared in the third and fourth parts. The word rendered in the A.V. and R.V. "latter end" here means posterity. The "perfect man" is further designated as a "man of peace."
The psalm might have ended with this gathering together of its contents in one final emphatic statement, but the poet will not leave the stern words of destruction as his last. Therefore he adds a sweet, long-drawn-out close, like the calm, extended clouds, that lie motionless in the western sky after a day of storm, in which he once more sings of the blessedness of those who wait on Jehovah. Trouble will come, notwithstanding his assurances that righteousness is blessedness; but in it Jehovah will be a fortress home, and out of it He will save them. However the teaching of the psalm may need modification in order to coincide with the highest New Testament doctrine of the relation between righteousness and prosperity, these confidences need none. For ever and absolutely they are true: in trouble a stronghold, out of trouble a Saviour, is God to all who cling to Him. Very beautifully the closing verse lingers on its theme, and wreathes its thoughts together, with repetition that tells how sweet they are to the singer: "Jehovah helps them, and _rescues_ them; He _rescues_ them, ... and saves them." So the measure of the strophe is complete, but the song flows over in an additional clause, which points the path for all who seek such blessedness. Trust is peace. They who take refuge in Jehovah are safe, and their inheritance shall be for ever. That is the psalmist's inmost secret of a blessed life.