The Hebrew noun nesek (from nasak, H5258, to pour out) refers to a drink offering — a liquid libation poured out before the LORD as part of the sacrificial system. Wine was the primary liquid used. The nesek accompanied burnt offerings, grain offerings, and peace offerings, completing the sacrificial meal.
The drink offering was the final act in the sacrificial sequence, representing complete self-offering to God. Its pouring out is irreversible — wine once poured cannot be reclaimed. Paul seized on this imagery to describe his ministry and death: "poured out like a drink offering" (Philippians 2:17; 2 Timothy 4:6). This is the theology of total surrender — life held back nothing, offered entirely to God. Jesus Himself, in Gethsemane, poured out His soul to God (Isaiah 53:12; Luke 22:44) before the cross — the ultimate nesek, completing all offerings.