Book of Joel Chapter 1 Vs. 9

 An Invasion of Locusts

The meat offering and the drink offering is cut off from the house of the LORD; the priests, the LORD'S ministers, mourn. Joel 1:9

The meat offering… To cut off these offerings, sacrificed each morning and evening (Exo. 29:38-42; Lev. 23:13), was to cut off the people from the covenant. The gravity of the situation was deepened by the fact that it threatened the livelihood of the priests, who were given a portion of most sacrifices.

These offerings had been a time of fellowship with God. These accompanied the morning and evening sacrifices. Suddenly, all of this is stopped. They have lost contact with their God. The priests “the LORD”S ministers” mourn, because they had lived of these offerings. Their livelihood is completely gone. Israel in its state these days.

The meat offering and the drink offering is cut off from the house of the LORD; the priests, the LORD'S ministers, mourn.

is cut off... The primary reason for mourning in this case was the plague’s negative effect on the formal worship system (cf. Joel 1:13). The destruction of the crops (grain, grapes, and olive oil, Joel 1:10; cf. Hos. 2:22) had left the priests who served in the house of the Lord without the essentials for the daily grain offerings (minḥâh), which included flour and oil (cf. Num. 28:5), and drink offerings (nesek), which included wine (cf. Exo. 29:40; Num. 28:7).

mourn... Twelfth & Thirteenth of twenty-two Predictions—Fulfilled here:

12. The meat and drink offerings will be cut off from the temple (Joel 1:9, 1:13).

13. Priests will mourn (Joel 1:9).

The meat offering... The primary reason for mourning in this case was the plague’s negative effect on the formal worship system (cf. Joel 1:13).