Revelation of Jesus Christ
From the KJV 1611 with Strong's Concordance
G4731
στερεός
stereos
{ster-eh-os'}
From G2476; stiff, that is, solid, stable (literally or figuratively).
stedfast
1 Peter 5:9.
strong
Hebrews 5:12, 14.
sure
2 Timothy 2:19.