The Pulpit Commentary - Psalms 78:47
He destroyed their vines with hail (see Exodus 9:23-25 ). Here, again, there is an inversion of the order in which the plagues came, since the plague of hail preceded that of the locusts. There is also an addition to the narrative of Exodus in the mention of "vines" (see also Psalms 105:33 ), which may indicate a use of tradition. That vines were cultivated in Egypt is now generally acknowledged. And their sycamore trees with frost; or, with sleet— a variant of the "hail" in the... read more
The Pulpit Commentary - Psalms 78:46
He gave also their increase unto the caterpillar, and their labour unto the locust. Khasil ( חָסִיל ), here translated "caterpillar," is probably either a particular kind of locust, or the locust in one of its stages. (On the plague of locusts in Egypt, see Exodus 10:14 , Exodus 10:15 .) read more