Charles H. Spurgeon on Psalms 144:2

My shield. The Hebrew word signifies, not the huge shield which was carried by an armourbearer, but the handy target with which heroes entered into hand to hand conflicts. A warrior took it with him when he used his bow or his sword. It was often made of metal, but still was portable, and useful, and was made to serve as an ornament, being brightened or anointed with oil. David had made abundant use of the Lord, his God, from day to day, in battles many and murderous. —C.H.S.