Albert Barnes Commentary Joel 1:10

"The field is laid waste, the land mourneth; for the grain is destroyed, the new wine is dried up, the oil languisheth." — Joel 1:10 (ASV)

The field is wasted, the land mourneth - As, when God pours out His blessings of nature, all nature seems to smile and be glad, and as the Psalmist says, to shout for joy and sing (Psalms 65:13), so when He withholds them, it seems to mourn, and, by its mourning, to reproach the insensibility of man. Oil is the emblem of the abundant graces and gifts of the Holy Spirit, and of the light and devotion of soul given by Him, and spiritual gladness, and overflowing, all-mantling charity.