Matthew Poole and continuators on Jeremiah 46:4

4 Harness the horses, and get up ye horsemen and stand forth with your helmets, furbish the spears, and put on the brigandines .

Art hath so much improved all things, in latter ages, that it is very hard to determine of what form the several weapons, and pieces of Armour, whether offensive or defensive in use at this time were, the most here mentioned seem to have been defensive, and the whole speech of the Prophet directed to the Egyptians, seems to be Ironical, calling to this Army of Pharaoh Necho to get ready to defend themselves, for they were to encounter with an Enemy would put them very hard to it, so as they had need, to have their Helmets and Bucklers and Shields, and Brigandines, all in a readiness, and know the use of them well, the horses for War had need be Harnessed, the Spears furbished, and the riders got up.