τὸ πνεῦμά ἐστι τὸ ζωοποιοῦν, ἡ σὰρξ οὐκ ὠφελεῖ οὐδέν → it is the spirit that quickeneth; the flesh profiteth nothing (1 John 6:63)
make fast (see also: κιρκόω, κιρκῶ)