Isaiah 7:21

In that day -In the time specified in the previous verses - in the judgments that should be brought upon the land by the Egyptians and Assyrians. A man shall nourish -Hebrew ‘Make to live:’ that is, he shall own, or feed. A young cow -The Hebrew denotes a heifer that gives milk. The state which is denoted by this is that of great poverty. Instead of being engaged in agriculture, of possessing great resources in that time, a man should depend, for the subsistence of himself and his family, on what a single cow and two sheep would yield. Probably this is intended also as a description of the general state of the nation, that it would be reduced to great poverty.