To pour out, shed, or spill. One of the most theologically rich verbs in the NT — used of the Holy Spirit poured out at Pentecost (Acts 2), of the blood of Christ poured out for forgiveness (Matthew 26:28), and of God's love poured into our hearts (Romans 5:5).
Ekcheō appears at the most decisive moments in salvation history. Jesus says his blood is 'poured out for many for the forgiveness of sins' (Matthew 26:28). At Pentecost, Peter quotes Joel: 'I will pour out my Spirit on all people' — and declares it fulfilled. The same verb describes the love of God 'poured out into our hearts by the Holy Spirit' (Romans 5:5). The movement is always from God outward — divine abundance overflowing into human experience. Pentecost is the 'pouring out' that reverses Babel and inaugurates the new creation.