Near the end of his first letter the apostle John utilized the overcoming language that he had heard Jesus use.
For everyone who has been born of God overcomes the world. And this is the victory that has overcome the world—our faith. Who is it that overcomes the world except the one who believes that Jesus is the Son of God? (1 John 5:4–5, ESV)
Verse 4 is one of the first phrases I memorized in Greek: ἡ νίκη ἡ νικήσασα τὸν κόσμον, ἡ πίστις ἡμῶν. The nike that niked, the victory that victoried, the triumph that triumphed, the overcoming that overcame is our faith. When we believe that Jesus is the Son of God, we win in Him.
The Lord’s Supper is a meal of overcoming. We eat and drink by faith as Jesus overcomes our hunger and thirst. He is true food and true drink, eternally filling (John 6:35, 51). We come to this table because He overcomes our sinful distance. We commune with God the Father through His Son. We eat this supper because He overcomes death. Dead men don’t eat, but resurrected men have quite an appetite.
In Jesus we have victory. He invites us to share together the symbols of His triumph, His body and blood. What we have here cannot be taken from us; we cannot be defeated. Even if they lead us like lambs to the slaughter, we are more than conquerors through Him who loved us and gave Himself for us. This is the power of the cross.