John Trapp on Joel 1:12

Verſe 12. The Vine is dried up, and the Figtree languiſheth] God cutteth you ſhort of all things both for neceſſity and delight: and this is ſo much inculcated, and iterated, that you may not ſlight it as a common occurrence: but be deeply affected with it, as a ſore affliction. Verba toties repetita viva ſunt, vera ſunt, ſana ſunt, plana ſunt. Let no man think that this is a ſuperfluous tautologie, Aug. or an idle repetition of the ſame thing. For, in ſacred ſcripture there is not a tittle in vain: there is not an apex whereon there hangs not a mountain of fenſe, as the Rabbines uſe to ſay. By one and the ſame thing repeated, memory is helped, affection is excited, and matters of moment are better minded, Phil. 3.1. Beſides, Repetitio confirmatio eſt, ſaith Ambroſe,De bone Mart. c. 12. The repeating of a matter implyeth 1 The infallible truth of it. 2 The inexpreſſible excellency of it. 3 The profitable uſe of it. 4 The abſolute neceſſity of it. Aut faciendum, aut patiendum.