Jamieson, Fausset and Brown on Ezekiel 7:12

12. let not ... buyer rejoice--because he has bought an estate at a bargain price.

nor ... seller mourn--because he has had to sell his land at a sacrifice through poverty. The Chaldeans will be masters of the land, so that neither shall the buyer have any good of his purchase, nor the seller any loss; nor shall the latter (Eze 7:13) return to his inheritance at the jubilee year (see Le 25:13). Spiritually this holds good now, seeing that "the time is short"; "they that rejoice should be as though they rejoiced not, and they that buy as though they possessed not": Paul (1Co 7:30) seems to allude to Ezekiel here. Jr 32:15, 37, 43, seems to contradict Ezekiel here. But Ezekiel is speaking of the parents, and of the present; Jeremiah, of the children, and of the future. Jeremiah is addressing believers, that they should hope for a restoration; Ezekiel, the reprobate, who were excluded from hope of deliverance.