Isaiah 22

"And in that day the Lord God of hosts
Called for weeping and for mourning,
For baldness and for girding with sackcloth.
13 But instead, joy and gladness,
Slaying oxen and killing sheep,
Eating meat and drinking wine:
“Let us eat and drink, for tomorrow we die!”  vv.12-13

Read chapter 22
Instead of morning and repenting during this time of national danger of Israel, they are rejoicing and partying.  Their short-sightedness and momentary deliverance from Assryia led them to not listen to the prophet Isaiah and turn to momentary and fleeting celebrating. The "slaying of oxen and killing sheep" was what made these celebrations special, as meat was a rare delicacy in the ancient world and during this time, and not the drinking of wine that made it special.  We also see this verse quoted by Paul in 1 Corinthians of "Let us eat and drink for tomorrow we die" and also in other of Israel's wisdom teachings, Ecclesiastes.  Paul and Solomon uses this verse to describe the mumblings of people without faith and those that cannot or don't believe in a fuller life after death.  So how do you mourn when it's time to mourn and party when it's time to party and live in and for the sure hope of life after death?  When was a time that you were more focused on the momentary happiness than living according to God's command?