Charles H. Spurgeon on Psalms 126:6

He may go forth, he may go forth, and weep, bearing (his) load of seed. He shall come, he shall come with singing, bearing sheaves. The emphatic combination of the finite tense with the infinitive is altogether foreign from our idiom, and very imperfectly represented, in the ancient and some modern versions, by the active participle (venientes venient, coming they shall come), which conveys neither the peculiar form nor the precise sense of the Hebrew phrase. The best approximation to the force of the original is Luther's repetition of the finite tense, he shall come, he shall come, because in all such cases the infinitive is really defined or determined by the term which follows, and in sense, though not in form, assimilated to it. —Joseph Addison Alexander.