G1756–ἐνεργής, ἐναργής–energēs, enargēs

for a great and effective door has opened to me, and there are many adversaries.

ἐνεργὴς energēs “productive”

that the fellowship of your faith may become effective, in the knowledge of every good thing which is in us in Christ Jesus.

ἐνεργὴς energēs “effective”

For the word of God is living, and active, and sharper than any two-edged sword, and piercing even to the dividing of soul and spirit, of both joints and marrow, and is able to discern the thoughts and intentions of the heart.

ἐνεργὴς energēs “active”