as a designation of Christians, means full of faith, trustful, and not simply trustworthy ( Acts 10:45 ; 16:1 ; 2 co 6:15 ; Colossians 1:2 ; 1 Timothy 4:3 1 Timothy 4:12 ; 5:16 ; 6:2 ; Titus 1:6 ; Ephesians 1:1 ; 1 Corinthians 4:17 , etc.).

It is used also of God's word or covenant as true and to be trusted ( Psalms 119:86 Psalms 119:138 ; Isaiah 25:1 ; 1 Timothy 1:15 ; Revelation 21:5 ; 22:6 , etc.).

These dictionary topics are from
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.