1: βέβαιος
(Strong's #949 — Adjective — bebaios — beb'-ah-yos )

"firm, steadfast, secure" (from baino, "to go"), is translated "firm" in Hebrews 3:6 , of the maintenance of the boldness of the believer's hope, and in Hebrews 3:14 , RV, of "the beginning of our confidence" (AV, "steadfast"). See STEADFAST , SURE.

2: στερεός
(Strong's #4731 — Adjective — stereos — ster-eh-os' )

"solid, hard, stiff," is translated "firm" in 2—Timothy 2:19 , RV, "the firm (foundation of God)," AV, "(standeth) sure;" stereos is not part of the predicate; "solid (food)" in Hebrews 5:12,14 , RV; "steadfast" in 1—Peter 5:9 . See SOLID , STEADFAST , STRONG.

Acts 3:7,1616:5Colossians 2:5